Just like apps and websites implement “Sign in with Apple” and Google couldn’t we build some kind of federated authentication provider? Then everyone creates an account there and fedi apps can implement an easy way to authenticate users. Even non fedi apps could use it. I imagine user interaction between different fediverse platforms would be much easier too.
I guess could run an auth instance. Ideally everyone would run their own, keeping your data safe.
Is there something likes this already? Saw some discussion here but not much else https://socialhub.activitypub.rocks/t/single-sign-on-for-fediverse/712
It doesn’t sound like you’ve used a password manager
Single tap sign in is available in password managers via passkeys.
It is as secure as the service you’re using to sign in. What it’s not is private.
Again, no one should be using this and we certainly should not be encouraging anyone to use it.
For many of those people, it is a giant problem.