@molly0xfff @pluralistic ah, yep, I missed clicking through to that link for some reason. Thanks!
I think my point still mostly stands tho. It's at the end, in a very large linked post, well after the main link's text claims Mastodon (activity pub / federation in general) solves the issue... when "the issue" is "account portability that can't be revoked when enshittified" which is absolutely not true at the moment. Though it may become true eventually, which puts it way ahead of most options.