Why are you equating Horizon worlds with vr? It's just one of many use cases, and it's obvious that social vr can only work outside niches after mass adoption was catalyzed by other uses cases.
I am not equating them, Meta considers Horizon their flagship app and so that's what I'm mentioning.
It's their social vr app, but meta knows very well that other uses cases drive vr now. Why do you think they are spending billions on acquiring game studios?