How to re-map keys on Ubuntu?

1.
https://github.com/sezanzeb/input-remapper

 2.

Using Gnome Tweaks

1. Install Gnome Tweaks: Open a terminal (Ctrl+Alt+T) and run:
   bash

   sudo apt install gnome-tweaks
   

   Use code with caution.
2. Open Tweaks: Search for "Tweaks" in the Activities overview and open the application.
3. Navigate to Keyboard & Mouse: In the sidebar, select Keyboard & Mouse.
4. Access Additional Options: Click on Additional Layout Options.
5. Remap Keys: Explore options like "Caps Lock behavior" or "Ctrl position" to make predefined common remaps (e.g., swapping Left Win with Left Ctrl).