Played Evil Genius (Platinum on AppDB) with this, couldn't find a single issue in it. Audio, graphics, input, all seems to work just fine.
System Information as taken from Steam
First launch gave me an error but 2nd launch works perfectly. https://gist.github.com/daasuharo/d83c92ac04a9bd0c5edfc359c3c5a4de Proton 3.7-5
game works fine, event faster then on wine :)
proton 3.7-5
proton 3.7
Played Evil Genius (Platinum on AppDB) with this, couldn't find a single issue in it. Audio, graphics, input, all seems to work just fine.
System Information as taken from Steam