Relying on Google/Apple is no better, with the stories of people losing access to their (Google in particular) account, and not being able to recover or let alone even reach a human at Google to begin with.
Why not have a public service for this, instead of relying on big tech that can just revoke your account for any number of ToS "violations" without recourse? The solution for "normies" should not be rely on and trust Google with your entire digital identity.