What Meta has been pushing as Metaverse is pretty big on human-like avatars.

But what does it has to do with VR in general? You don't have to use any of Meta social apps to use VR.

It have to do with VR because VR is attempting to replicate reality. If you do that almost, but not quite, perfectly then you're in the uncanny valley. It doesn't have to be about portraying people.

Current VR can't even approach realism -- which keeps it out of the uncanny valley.

However, if the technology improves to the point where the graphics approach realistic, the uncanny valley will become a real problem.