There was a recent interview with MZ on HN that addressed this. He was asked if it was a mistake to require one account, and he basically said "we wanted a sing

There was a recent interview with MZ on HN that addressed this. He was asked if it was a mistake to require one account, and he basically said "we wanted a single-login, but we didn't think about how combining accounts would be undesirable, but we recognize it is" So I think the end state is a single-log in Meta account with discrete FB and Oculus accounts to accompany it, logged in through Meta?