snowe

that is most definitely not the process. You have to explicitly go into Steam’s settings > Compatibility > “Enable Steam Play for all other titles” (what in the world, it’s called Steam Play, not Proton?) and then additionally select which Proton version you want. If you don’t know this, or don’t google it with the right keywords, you won’t understand why literally 90% of your library isn’t available (in my case it was 99% of my library, I think I only had 3 games available on linux natively). Also if you select the wrong Proton version some games won’t run, so you have to know that and switch it for those games only.