I've been working with some smart people on something to hopefully become a "federated account" that can be used with any service, and is 100% compatible with OIDC, so its easy for systems to implement as the authentication vehicle: https://fedid.me/
Just presented it at IIW and interest is building thus far, so my hopes are high 😉
We simply don't need Reddit users. We need Lemmy users who desire to start communities. Lemmy is Reddit 10 years ago, and that's just fine.