My guess is they focus on Proton for Steam Deck, which can not run VR comfortably (but, it can run it via USB-C docks/dongles, the power of a full Linux PC!). So we get constantly better Proton compatibility, including work on anti cheats, but VR is low to no priority. The market is pretty small, especially if you mostly worry about Index and related PC-tethered headsets. Also developing VR for Linux can't be an easy task.
I am especially annoyed that they more or less dropped the ball when it comes to Beat Saber via Proton. Beat Saber was an official launch title for Proton, but was unplayable for months [1].
I am especially annoyed that they more or less dropped the ball when it comes to Beat Saber via Proton. Beat Saber was an official launch title for Proton, but was unplayable for months [1].
[1] https://github.com/ValveSoftware/Proton/issues/6638