

Oh, I agree. I meant SSO in the second sense: that there are external Identity Providers that you can use to create an account at different servers hosting different kind of fediverse experiences - be it Lemmy, PeerTube, Mastodon or … I understand the issue you are describing first, but I haven’t had that problem yet. Sounds like it could be fixed with a simple redirect - but I guess it is not so easy to figure out whether you need a redirect in the first place.
I think for now the easiest solution would be a browser extension “TakeMeHome” that automatically redirects you when you enter a foreign server that is federated with your home server. Should be pretty easy to implement.