VR on linux actually works just fine from my experience. I've never had a game not work. The big issue is just headset support. The HTC Vive and Valve Index are the only headsets with official drivers, since they were made by Valve. Standalone headsets, like the Quest for example, also work using ALVR. Anything else doesn't really work. There are open source drivers but they're not complete enough to be useable unless something majorly changed there since I last checked.