Expecting a way way way smaller team that didn't get $1billion in founding, like Discord did, is an extremely poor mindset to have.
All you're proving is the need to implement a tech tax to force companies to fund FOSS at the behest of the federal government, which frankly I'm all for.
* Centralized identity, and participating in multiple communities at once: People sign up once, then navigate to whatever autonomous communities they choose quickly.
* No hosting requirement (good for ease of use): Want a new autonomous space? Create it! Boom! No installation, no hosting, no monetary cost.
* Video streaming: No other chat client does this easily. Not Mumble, Ventrilo, Teamspeak, or these chat programs.
If you want to defeat Discord, particularly in the gaming server arena, you need to make interacting with multiple servers better and you need screen/video streaming.