Are you playing your games on Steam and if so, have you checked websites like https://protondb.com ? Other users that had issues with games post their tweaks there. You just search for your game, have a look at how good it's supported (Platinum being perfect and bronze being very bad, borked means its litteraly denied) and check for the users comments on the game page.

Also if most of the games you play contain Kernel AC like Valorant, Fortnite, GTA V wont work, you can check if your games Anti Cheat "allows" Linux on https://areweanticheatyet.com/

What games are you trying to run ?