No offense, but there it this chart, and what this tells me, maybe just me, is that gaming is a niche within VR, not even majority use case. Zuck is probably right about VR/AR being the next big social media, only he's wrong that it'll be like Facebook/Instagram type of social media; it's old Twitter type of social media.
That's certainly one useful spin, but the red flag here is that these don't correlate well with games known as best VR games to VR communities. What I believe to be a more accurate interpretation is, there's nothing but VRChat in VR, and gaming demand in VR can be ~10x smaller per title relative to it.
[1]:
Most played VR games
1: https://steamdb.info/charts/?tagid=21978