They recently added experimental Linux support. Performance is way better, but unfortunately it crashes fairly frequently. It has been getting better every update though.
According to ProtonDB[0] it seems to work reasonably well.
Apparently there's also experimental Linux support now[1].
I can't speak for Wine, but my son uses it on Proton regularly and except for a few brief glitches after updates and the inability to use the steering wheel controller, it's worked very well. https://www.protondb.com/app/284160