Interesting research, but Meta do not have any device worth talking about (at least at scale,) unless they want to ship that as part of their apps.
Quests have shipped roughly ~1/2 PS5 sales. Certainly a scale only a handful of technologically advanced product lines outside of phones ever reach.
Incidentally, the enabling technology for the Quest? On-device ML that grew out of - you guessed it - developing on-device inference for their apps.