No native support. Runs well on Proton (minor audio problems).

Runs natively.

Does not run natively. Runs fine on Proton.

Runs natively. Runs fine even on Proton. Cross platform multiplayer does not work if you are playing with someone who is using another OS.

Runs natively. I had to chance my options.ini to decrease fps cap, because by default I had so may my pc was melting.

Runs natively.

It just does not work.

No native support. Runs well with Proton. I had to decrease texture quality to low to get 60fps, but I guess it's my prehistoric hardware's fault. I did not try VR.

Runs natively.

No native support. That being said, it runs surprisingly well with proton. I'd suggest installing it on an SSD, since every time i start Steam it checks 10Gb for integrity.