don't care for anticheat, main concern is VR library
Have you tried Proton on Linux? Checkout https://www.protondb.com/ for games compatibility. The coverage is pretty darn good, e.g. Cyberpunk runs pretty smoothly. Where you'll hit a hurdle is anti cheats, but that's spyware anyway, people should stay away from them.
Discussion
Ah, haven't tried with VR. Just try it, I guess it will depend on driver support. I generally don't touch proprietary drivers (so no NVidia), but for VR NVidia could be better.
If I may add, dual booting, or live USB to switch to Linux rarely leads to success. If you are serious about switching, you need to commit to it. I used to dual boot for a long time, but I never really committed, around about 15 yrs ago I just went "wth, let's go for it, I'll learn stuff", and never looked back.
I would also say don't try lots of distros trying to find the perfect one. Just pick a mainstream distro, and go with it. I hear Mint or Pop_OS are good for starters. If you are a bit techy, you could try Fedora (that's what I use).
Good luck 🤞🏾