• Large public rooms have constant issues with encryption, and since you can’t turn it off once enabled (yeah 🤦‍♂️) most public rooms are not e2ee. Besides the fact that e2ee doesn’t really make sense in public rooms as anyone can join.

      Push notifications in Matrix clients only work with the help of Google’s or Apple’s centralized infrastructure. This is of course only partially the fault of Matrix, but XMPP for example can do it without pretty well.