I just got an email from the Meta VR team, since I own an Oculus Quest 2, that starting August 2022, you’ll be able to sign into your Meta VR account without needing a Facebook account.

• A Facebook account is no longer required to use Meta VR devices. Instead, you’ll need to set up a Meta account, which lets you log into your VR devices and view and manage your purchased apps in one place. You can set up a Meta account using your email address or Facebook account, and as part of the process, we’ll migrate your existing VR information (including apps, achievements, and friends) to this account.

Again, this will begin August 2022 and Meta will merge all your existing information into this new account once it starts.