>even though Valve wanted Source2 to be a VR platform

I don't think this is true. The first Source2 game "released" was Dota 2, and currently it's used for CS2 and Deadlock as well.

Fair point. Maybe I should've said SteamVR environments instead, it never took off like SourceSDK did, partially due to incomplete tools. SteamVR as a whole is very healthy though.