SUMMARY Jargon used in error message: Failed to join room Failed to make_join via any server
This is a message coming from your server, e.g. the same thing may also appear in Element? I'm unsure if this is the place to fix that.
Indeed, I agree it is a message from the server, but the client choses how to display that information to the user. We want to make sure users aren't bombarded with confusing server-side commands unless necessary. NeoChat can receive the message and "translate" it into user-friendly information before showing the user.