Keep in mind he used very specific working "personal facebook account" and just announced a new company name 'Meta.'
To me that points to a 'log in with Meta' option.
which is probably an improvement if they're kept totally separate from facebook
Re:Facebook Renames to Meta
by txsoftwaredev on Thursday October 28, 2021 @06:23PM
(#29032802)
I'd imagine it's not that hard to tie a "Meta" user back to a "Facebook" user. Seems like it's all just for PR.
Unfortunately outside of Tweets, this is the best story I found on it at the moment: https://www.ign.com/articles/oculus-facebook-requirement-end...