For what it's worth, I don't think the grandfathering applies.
"All future unreleased Oculus devices will require a Facebook account, even if you already have an Oculus account."
https://www.oculus.com/blog/a-single-way-to-log-into-oculus-...
Re:Oculus Quest 2
by moron4hire on Wednesday September 16, 2020 @03:03PM
(#24496194)
shit...
EDIT: never mind. I won't be getting the Quest 2.