Linux

And maybe?

That's a broad question. Usually, whatever games you want to play are fine, as long as they don't have a kernel-level anti-cheat system in place.

Digging into your profile I found a couple of games you may be looking at. Assetto Corsa Rally is rated Gold on ProtonDB[www.protondb.com]. All the WRC games are also rated Gold, but the very first one has a silver rating with some people saying it's broken, and all the most recent ratings are pointing to a recent, EA related issue.

I personally run Linux exclusively, and I do enjoy a bit of racing sim games. Dirt Rally 2[www.protondb.com] is a lot of fun. I've heard getting racing wheels up and running through Linux is a bit of a pain though. I have no experience there personally.