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Steam Frame (VR with Linux)
(store.steampowered.com)
A community for everything relating to the GNU/Linux operating system (except the memes!)
Also, check out:
Original icon base courtesy of lewing@isc.tamu.edu and The GIMP
Beat Saber is on Steam and is also the best selling VR game of all time, so yeah I'd say it will work. I'd be extremely surprised if it wasn't one of the very first games Valve worked on FEX & proton optimisation for.