So, I have a Threema license, but from what I’ve seen its encryption isn’t post-quantum. Signal’s encryption seems the strongest. I host my own matrix server.
Also, I kind of don’t care where the servers are or which provider it is. Everything is encrypted anyway.
You say this like username logins don’t exist
No, we know that, but people will still come scream here that you need a phone to register anyway. It’s all the time the same people. Not realizing that is the easiest onboard that all the normies are used to and an easy way to control spam accounts.
I mean if you acknowledge that user names can be used like any other website then your point doesn’t work. They don’t need my phone number. Most applications don’t need it but they do? Come on.