Not at all. That video simply shows VFIO GPU passthrough. There is no VR involved (which works fine with a little extra setup), and there's no multiseat. What I was asking is if anyone has used a single Linux computer to perform VFIO GPU passthrough to MULTIPLE guests (which I think Linus has videos of) WITH VR. I've yet to see anyone do it, but I'm fairly certain it should work....