Napaints moment
Mumble is super popular with EVE Online players still, no? Because of the support for a large number of users in a single room
Yep, Mumble is the most common, and there are still a couple groups that use Teamspeak.
Discord caps at 100 people in a call while I've seen good Mumble servers handle over 800.
For a group our size (we regularly have over 800 people on our mumble, peak is somewhere around the 1.3k mark if I remember correctly), it would also be very cost prohibitive to use TS