@Zerglingman @carlosruzu You seem like you're in a bad mood, Zerg. I feel like you've been rather hostile today (well yesterday technically). Not pulling a "u mad bro", I'm genuinely curious, as a fren. You ok, man?
Anyways, the issue is they still have access to metadata.
"Matrix was developed and funded by a company Amdocs. Amdocs is an Israeli company that has since moved to America and has near total knowledge of American telephone communications.
You can read about the fun history of Amdocs here. More about Matrix and Amdocs here.
Since American telephone records have "mysteriously" fallen into the hands of Israel, there are many questions as how this has happened. Perhaps this Israeli company which has had many Israeli military and intelligence officers involved with it and which also has all American telephone records might be involved?
Actually, this is just like Matrix. Amdocs does not have access to telephone audio (so far as I know), they only traffic in metadata (when calls are made and between whom). Matrix functions the same way. Chats are at least end-to-end encrypted (which still puts this Israeli honeypot lightyears ahead of proprietary spyware like Telegram), but Matrix metadata is easily available to server administrators.
Now to be clear, formally, since 2017, Amdocs no longer is the open sponsor of Matrix. It is instead funded by a break-off organization called Vector. But Matrix/Vector has somehow remained very, very well-funded for a "community-driven" project: they raised $8.5 million, that's a lot for free stuff! Crowd-funding for relatively unknown open source software projects is apparently much more lucrative than I thought!
(Of course, we all know that this is a baseless and widely deboonkted anti-semitic conspiracy theory as Our Greatest Ally®️ Israel would never do anything bad to us at all.)"
Android: conversations (or convers6tions if you care about ip6), also others
There are shitloads of them, just look up "xmpp client <platform>" and you should get flooded with results.
There are probably websites that do it but they may not work with all servers (there's a setting about http access, which I think websites would usually use, but not always).
As for how to use... Hopefully they're relatively straightforward. idk good learning places for xmpp. I lurk the newsletter these days: https://xmpp.org/blog/
Also it has lots of Russian crypto scam bots, have fun getting friend reqs from them (I think you can just auto reject friend reqs, or at least by domain - there are only about 5 domains that do it).