There's a dead reply (ah, it stopped being dead just as I submitted this) providing a link to a twitter frontend which gives context. Not sure why it's dead but here's the link from that comment: https://xcancel.com/id_aa_carmack/status/1827363452194619692

""" Andrew Fox @afoxdesign Seriously, Minecraft VR should’ve been a thing years ago. Building stuff with a buddy in fully immersive 3D. How is that not a hit

John Carmack @ID_AA_Carmack We had it on Oculus Go — I did the initial port, then the Microsoft team did a full integration. I had it working in 6DOF on Quest, but other parts of Meta were negotiating with Microsoft to get some Xbox titles instead, and in the end we got neither. It was a damn shame. """

6DOF [1].

[1] https://en.wikipedia.org/wiki/Six_degrees_of_freedom

Off topic: I think there’s very serious ethical implications with linking to siloed app ecosystems from the open web. There’s a paradox of tolerance hiding here somewhere. The web is significantly worse today than it used to and I think we’re making it worse by allowing these players to exploit the openness of the web for their own gain while rejecting it when it suits them.