ProtonUp

Application site : https://davidotek.github.io/protonup-qt/

Install

Flatpak https://flathub.org/en/apps/net.davidotek.pupgui2

Installing Proton-GE

Proton-GE generally works the best, but try others if this doesn't work well for X game

ProtonUp Main Window

Press Add version on the main window

Set the options to GE:

ProtonUp Add Version Window

Restart Steam.

Right click your game in Steam and go to the Compatibility Tab, select Proton-GE

Steam Compatibility Tab in Game Properties

Close the window and start the game.

Update all Games from one Proton Version to Another

Close Steam.

Click the current Proton version in the Main Window, then press the Show Info button

ProtonUp Show Info

Press Batch Update, select a new version and press Batch Update in the new window.

Restart Steam.