@gamingonlinux Reporting back on this the launcher and room setup worked great this time, just like on Windows! I then went and downloaded HL:A of course; the obvious benchmark. I played for about an hour before it hung the entire PC and had to be hard reset. The performance was way better than last time but reproduction was pretty bad. Playable for some perhaps but would probably cause motion sickness for others. Still, a huge leap forward and here's to hoping they keep improving!