Mouse.ini -

On Linux, a file named xboxdrv-mouse.ini is used to make a gamepad act as a mouse.

Storing user-defined parameters for mouse sensitivity, button mapping, and acceleration. Common Locations: mouse.ini

In Bethesda titles, "mouse ini" changes are often part of larger files like SkyrimPrefs.ini or Fallout4Custom.ini . Players frequently create or edit these to: On Linux, a file named xboxdrv-mouse