No cause they want to be able to prevent people from adding ads and tracking to the app and then redistributing it.

He talks about this in the announcement video.

That it probably won’t stay available for long

Again, I just don’t understand what you mean by this, there’s a list of servers, you click one and get a list of channels in that server, click one of those and you’ve got a classic chatroom.

What is it you find chaotic?

I really don’t understand why people say this, I find is very easy to navigate and use.