diff --git a/conan/tools/system/package_manager.py b/conan/tools/system/package_manager.py
--- a/conan/tools/system/package_manager.py
+++ b/conan/tools/system/package_manager.py
@@ -39,7 +39,7 @@ def get_default_tool(self):
             os_name = distro.id() or os_name
         elif os_name == "Windows" and self._conanfile.conf.get("tools.microsoft.bash:subsystem") == "msys2":
             os_name = "msys2"
-        manager_mapping = {"apt-get": ["Linux", "ubuntu", "debian", "raspbian", "linuxmint", 'astra', 'elbrus', 'altlinux'],
+        manager_mapping = {"apt-get": ["Linux", "ubuntu", "debian", "raspbian", "linuxmint", 'astra', 'elbrus', 'altlinux', 'pop'],
                            "apk": ["alpine"],
                            "yum": ["pidora", "scientific", "xenserver", "amazon", "oracle", "amzn",
                                    "almalinux", "rocky"],
@@ -61,7 +61,7 @@ def get_default_tool(self):
             for d in distros:
                 if d in os_name:
                     return tool
-                
+
         # No default package manager was found for the system,
         # so notify the user
         self._conanfile.output.info("A default system package manager couldn't be found for {}, "

Sure, thanks for the suggestion @jwillikers 

That should be an easy one, do you want to submit the contribution yourself?
I can do that.
diff --git a/conans/test/integration/tools/system/package_manager_test.py b/conans/test/integration/tools/system/package_manager_test.py
--- a/conans/test/integration/tools/system/package_manager_test.py
+++ b/conans/test/integration/tools/system/package_manager_test.py
@@ -62,6 +62,7 @@ def test_msys2():
     ('altlinux', "apt-get"),
     ("astra", 'apt-get'),
     ('elbrus', 'apt-get'),
+    ('pop', "apt-get"),
 ])
 @pytest.mark.skipif(platform.system() != "Linux", reason="Only linux")
 def test_package_manager_distro(distro, tool):

[feature] Add support for Pop!_OS to package_manager
### What is your suggestion?

[Pop!_OS](https://pop.system76.com/) is an Ubuntu-based Linux distribution. It would be great if it could be added to the list of distributions that support `apt-get`. Its `distro.id()` is `pop`.

### Have you read the CONTRIBUTING guide?

- [X] I've read the CONTRIBUTING guide

conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[pop-apt-get]
conans/test/integration/tools/system/package_manager_test.py::test_apt_install_recommends[True-] conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Dnf-rpm conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[opensuse-tumbleweed-zypper] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[PkgUtil-x86_64-pkgutil conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[elbrus-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Pkg-pkg conans/test/integration/tools/system/package_manager_test.py::test_package_manager_platform[Solaris-pkgutil] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[arch-pacman] conans/test/integration/tools/system/package_manager_test.py::test_dnf_yum_return_code_100[Yum-yum conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Dnf-x86-dnf conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[fedora-dnf] conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Zypper-rpm conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Yum-yum conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[pidora-yum] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Dnf-x86_64-dnf conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Yum-x86_64-yum conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[altlinux-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Zypper-x86-zypper conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Yum-rpm conans/test/integration/tools/system/package_manager_test.py::test_tools_check[PacMan-pacman conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Chocolatey-choco conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[PkgUtil-x86-pkgutil conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[astra-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Apk-apk conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Chocolatey-x86-choco conans/test/integration/tools/system/package_manager_test.py::test_package_manager_platform[Linux-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Chocolatey-choco conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Brew-x86_64-brew conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[freebsd-pkg] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Pkg] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Brew-x86-brew conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Apt-x86_64-apt-get conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Apk] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Pkg-x86_64-pkg conans/test/integration/tools/system/package_manager_test.py::test_sudo_str[False-True-] conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Dnf-dnf conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Zypper-zypper conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[PacMan-pacman conans/test/integration/tools/system/package_manager_test.py::test_package_manager_platform[Darwin-brew] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_platform[Windows-choco] conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Apk-apk conans/test/integration/tools/system/package_manager_test.py::test_tools_install_archless[Yum-yum conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Yum-x86-yum conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Zypper-x86-zypper conans/test/integration/tools/system/package_manager_test.py::test_tools_install_archless[Apt-apt-get conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Apk-x86_64-apk conans/test/integration/tools/system/package_manager_test.py::test_sudo_str[False-False-] conans/test/integration/tools/system/package_manager_test.py::test_apt_install_recommends[False---no-install-recommends conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Brew-x86-brew conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Chocolatey-x86_64-choco conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[PkgUtil] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[PacMan] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Brew-x86_64-brew conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[sles-zypper] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[ubuntu-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[PkgUtil-pkgutil conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Yum-x86-yum conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Yum-x86_64-yum conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[PacMan-x86-pacman conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Yum] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[nobara-dnf] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[opensuse-leap-zypper] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Apt-x86-apt-get conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Zypper-x86_64-zypper conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Brew-brew conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Zypper] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Pkg-x86-pkg conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Chocolatey-x86_64-choco conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Brew-test conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[PkgUtil-x86_64-pkgutil conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Zypper-x86_64-zypper conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[PacMan-x86-pacman conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Apk-x86_64-apk conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Brew] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[opensuse-next_version-zypper] conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Pkg-pkg conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Chocolatey] conans/test/integration/tools/system/package_manager_test.py::test_sudo_str[True-False-sudo conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[opensuse-zypper1] conans/test/integration/tools/system/package_manager_test.py::test_tools_update_mode_install[Apt-apt-get conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Pkg-x86_64-pkg conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[debian-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Pkg-x86-pkg conans/test/integration/tools/system/package_manager_test.py::test_tools_check[Apt-dpkg-query conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Dnf-x86-dnf conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[linuxmint-apt-get] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Apt] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Chocolatey-x86-choco conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[PacMan-x86_64-pacman conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Apt-x86-apt-get conans/test/integration/tools/system/package_manager_test.py::test_tools_install_archless[PacMan-pacman conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_to_build_machine_arch[Dnf-x86_64-dnf conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[PkgUtil-x86-pkgutil conans/test/integration/tools/system/package_manager_test.py::test_tools_install_archless[Dnf-dnf conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[PacMan-x86_64-pacman conans/test/integration/tools/system/package_manager_test.py::test_dnf_yum_return_code_100[Dnf-dnf conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_check[Dnf] conans/test/integration/tools/system/package_manager_test.py::test_tools_install_mode_install_different_archs[Apt-x86_64-apt-get conans/test/integration/tools/system/package_manager_test.py::test_sudo_str[True-True-sudo conans/test/integration/tools/system/package_manager_test.py::test_tools_check[PkgUtil-test conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[rocky-yum] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[opensuse-zypper0] conans/test/integration/tools/system/package_manager_test.py::test_package_manager_distro[alpine-apk]