@arteteco I've only had it up to ten or twelve devices attached at once, but it worked admirably under those conditions. (Strictly speaking, we might've had fifteen *people* with a few pairs sharing devices).

I haven't used Teams, but Nextcloud Talk is more comparable to Jitsi Meet than to Skype. In particular, desktop users must use a browser instead of a standalone client, which is fine but means you're out of luck if yours doesn't support WebRTC (notably, Pale Moon).