[INTPenis]

What about maintaining encryption for an entire room of clients? I heard it's very difficult and prone to errors. Do you enforce it?

[Arnt]

I use matrix. Every chat room I use is unencrypted and all have at least one matrix.org user. I assume it can be encrypted but the usability is such that in practice it's cleartext.

[cge]

As a counterexample: I use Matrix along with ~30-50 people, on a federated server, and every room is encrypted. After sufficiently stressing to people that they need to save their secure backup key, we've had few problems with encryption usability.