SteamVR has no issues with Linux. But in the PC space, there are basically three major ecosystems for VR that basically interface between the HMD and SteamVR
Facebook: I have no idea but I would be pretty shocked if this was linux friendly
Windows MR: Actively not Linux friendly, but there are hobbyist shims that work to varying degrees
Vive: No issues
So VR has no issues with Linux (because of SteamVR) but almost every single HMD does.
VR requires Windows?
SteamVR has no issues with Linux. But in the PC space, there are basically three major ecosystems for VR that basically interface between the HMD and SteamVR
So VR has no issues with Linux (because of SteamVR) but almost every single HMD does.