Do they? Personally I've never willingly joined one of those massive servers, only when forced to by some projects that refuse to host their content anywhere else- and its always a terrible experience. 99% of my discord usage is just a group chat with my IRL friends, so when looking for alternative I dont really care about roles and moderation and bots at all. I just want a group text chat, a mobile client for it with notifications, and drop-in/drop-out voice calls