+1 for Linux Mint, switched from windows 10 recently.

Terminal is annoying but not needed as much as I feared, and usually it's copy + paste anyway (ctrl + shift + v to paste in terminal). A lot of stuff is easier on Linux, like updating, and (sometimes) installing things. Also, it's a feeling that your computer will stay the same or get better, not get worse.

Also:

In Steam, you use Proton when your install button is grey, by tapping the gear icon on the right, selecting Properties, Compatibility, checking the box that says "force the use of a specific Steam Play compatibility tool", and choosing the first thing from the drop-down menu. So far everything I've done this with has worked immediately after.