I think most of the games I was talking about were Oculus games using revive, and I didnt realise. Namely, Bullettrain, Magic Table Chess, VR Multigames, all the free ones basically. KTANE is definitely steamvr though. I am able to get most steamvr games working.
But as far as I can tell, the problem is the same in SteamVR Home as it is in revive. That leads me to think (just guessing, I know nothing) that it is a steam problem rather than a revive one.