Switching from just basic Oculus accounts to Facebook accounts was the dumbest move, I say that from someone who was really enjoying the Rift and Quest 1 hardware. Whole thing was pretty effortless until that moment, then logging into it became this massive chore where you're bounding between the phone and headset twice, really tedious if you're not a big facebooker so haven't used their login flow in years and it was all just extremely janky.
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.