Comment by writtenone

No it doesn't. Matrix has large groups, but they are limited:

1. You must join a group to see its contents. This puts a stupid "{user} joined the room" message in the room for everyone to see. Channel membership is anonymous.

2. Channels generate a public feed that doesn't require any special software to read from (see Durov: https://t.me/s/durov). Matrix requires a client of some kind, all clients are clunky at best and none have a public view.

3. Channels support millions of readers. Matrix rooms literally cannot do this, and rooms frequently get out of sync due to federation.