According to Meta it runs on their private servers

I’d like to know if this is just a firmware update or unfixable, but sadly this seems just an ad rather than news

kbin has been discontinued but there is a fork called mbin, piefed and loops are missing and some very small projects, also bridgyfed isn’t there but it’s still a pretty good overview

Yes, and there are already lots of different ones that, at least partially, work together:

Don’t know if there is something LinkedIn like though

While that is very much true, but I find it debatable if you (as in the dev) want the user facing UI to show it.

This sounds like AI is literally biting its own tail

The problem with web apps is that even if the messenger is perfectly secure your web browser/webview provider might not be. Like with windows recall, even if you have the most secure messenger it doesn’t matter if an underlying function scans your info. This doesn’t mean there shouldn’t be the option for a webapp, but it shouldn’t be the default.