At least for your glibc / nvidia concern, I feel like if you stick to the binary packages, at least on Ubuntu, it's hard to break. Recently I've been trying to

At least for your glibc / nvidia concern, I feel like if you stick to the binary packages, at least on Ubuntu, it's hard to break. Recently I've been trying to do all the gaming I can on Linux with Proton, and at least for single-player games, it tends to work pretty well. (MP is still a big issue due to the current state of anti-cheat) Audio latency is one struggle I agree is still pretty bad. I had a pretty good time getting SteamVR running on Linux with Beat Saber running via proton, but tuning the audio latency was a big pain.