The fact that it’s opt-out is already a reason to push people away from the app

YES, PLEASE! DO IT!!! Give people more reasons to leave!!

Many thanks! I uninstalled all proton versions I had installed on steam.

I then redownloaded the game (the most painful part) and tried the Proton Experimental, which caused an error saying the compatibility tool failed. I then tried the Proton 8.0-5 (since I was using the 9.0-4 previously) and the problem went away.