Then there were a bunch of walls in the transition period where Oculus accounts can do X,Y but Meta accounts are needed for Z.
Can really tell Zuck told the teams "All in on VR/AR" and the accounts/FB team began "well if its core it's account should be the core account we use".
Would have been much smarter to keep it like Instagram where it's an entirely separate feeling account but under the hood deeply connected in a way that allows the data syphoning they want but the end user it rarely feels like a Facebook account.