Are there keyboard mappings to make Ubuntu more like MacOS?
Update 02/03/2020

Kinto - Type in Linux like it's a Mac.

Kinto has now been rewritten in C for Ubuntu/Debian systems using x11. It also uses json config files, making it easier to manage and extend to other applications than just terminals. The app no longer maps to Super in the Terminal apps, it will now properly map to Ctrl+Shift to create the exact same feel as having a Cmd key.

Please checkout the latest release.
https://github.com/rbreaves/kinto

The main change to allow for the Super = Ctrl+Shift change is in this symbols file.

default partial xkb_symbols "mac_levelssym" {
    key &lt;LWIN&gt; {
      repeat= no,
      type= "ONE_LEVEL",
      symbols[Group1]= [ Hyper_L ],
      actions[group1]=[ SetMods(modifiers=Shift+Control) ]
    };
    key &lt;RWIN&gt; {
      repeat= no,
      type= "ONE_LEVEL",
      symbols[Group1]= [ Hyper_R ],
      actions[group1]=[ SetMods(modifiers=Shift+Control) ]
    };
};




You may find Kinto to be useful. It's a project I recently created, after a few years of tackling this problem a few different ways and I just now feel like it's solid enough to share.

The Kinto installer simply uses python to do the initial install, after that it's just a systemd service, bash, xprop, setxkbmap and xkbcomp. As far as I am concerned it is the fastest and most native solution to this problem that you are going to find.

https://github.com/rbreaves/kinto

https://medium.com/@benreaves/kinto-a-mac-inspired-keyboard-mapping-for-linux-58f731817c0

Here's a Gist as well, if you just want to see what is at the heart of it all, it will not alternate your keymap when needed though. The Gist also does not include custom xkb keymap files that setup macOS style cursors/word-wise manipulations that use Cmd and the arrow keys.

https://gist.github.com/rbreaves/f4cf8a991eaeea893999964f5e83eebb