Zuck has the right idea, 50 years too early
The up-and-down-of-it is that Zuck realizes that whoever invents the 'Oasis' of Ready Player One fame will be the richest man on the planet.
The problem is, the tech just isn't there to do 'that' yet, and thus he's not going to be 'that guy' starting this early & with the amount of effort he is applying - as he'll run out of resources before the hardware is 'there' to actually do it.
The idea of putting on present-day VR gear to socialize politely (and nothing more - remember: the RPO metaverse allowed virtual violence, competition, vehicles, etc) with cartoon avatars just makes no sense...