Because of the ongoing fucktastrophe, the cries of "Use SIGNAL!" are constant and unavoidable. And I get it, it may be the least-bad option in a sea of terrible options. If, that is, you choose to ignore the advice of "don't use your phone for that shit" (the Stringer Bell Rule). But out of curiosity, because I haven't been keeping up, has the Signal Corporation addressed: The fact that they ...
The main difference is that in Matrix, a chat’s history and media is stored indefinitely on every participating server, while on XMPP it’s only the duty of the one “hosting” it. And to my understanding, in 1-to-1 chats, the server doesn’t even retain the messages after delivering them, since there’s a separate module for “syncing” the history between devices (that you can set the retention time for).
The main difference is that in Matrix, a chat’s history and media is stored indefinitely on every participating server, while on XMPP it’s only the duty of the one “hosting” it. And to my understanding, in 1-to-1 chats, the server doesn’t even retain the messages after delivering them, since there’s a separate module for “syncing” the history between devices (that you can set the retention time for).