I also only game on my home PC and I’ve been using it for over a year now with Linux. I play CS 2, WOWS and Battletech mainly but check protondb.com for your games. My kids are also using Linux and they also were able to play everything they wanted.
There are a few AAA games with cheat protection that won’t work. Other than that: It’s awesome and you feel the freedom instantly!
Did you get a solution for that? I’m experiencing the same problem…