In all the different Linux desktop environments there is usually a list of all the (xorg) programs that can be run.For example in my most recent Linux install (Arch running the Deepin Desktop Environment) if you press the Windows/Mac key it brings up a list of all the applications that use xorg, and shows what ones where installed recently. How do I get that list of the installed xorg applications/packages from the command line? 
Get list of all installed X applications
linux;command line;arch linux;xorg
Desktop entries for applications, or .desktop files, are generally a combination of meta information resources and a shortcut of an application. These files usually reside in /usr/share/applications or /usr/local/share/applications for applications installed system-wide, or ~/.local/share/applications for user-specific applications. User entries take precedence over system entries.source :https://wiki.archlinux.org/index.php/Desktop_entries