Meta is kind of the Xerox PARC of VR, in that they're doing a lot of great research but utterly failing to productize it.
Think for example of their work on virtual avatars [0]. That research is FOUR years old but looks about 1000 times better than Apple's "Personas" from visionOS. But Apple will actually ship.
[0]: https://www.wired.com/story/facebook-oculus-codec-avatars-vr...