I've been very confident for awhile now that I can just buy games on a whim and not have to check if their compatible. I just assume they are. So far haven't had any issues, and if I did, then Steam let's you do an easy auto refund so there's no risk at all.

Even the online game I play that I had to keep Windows around for (Genshin Impact), they randomly made their anti cheat compatible with Wine so I have zero reason to use Windows now. I have no more games anymore that don't work on Linux.

There's just a few super popular shooters with aggressive anti cheats that don't really work. Its always the anti cheats that demand direct kernel access! Which people really underestimate how massive of a security flaw that is, even if you don't care about Linux.