I love Jitsi, before Covid19 I never used it, now I use it daily for calls with family and yesterday I watched a video of our 4x4 trip with friends together with them (5 guys), streaming it from YouTube into the group chat. It worked very well.
My colleagues loved the Youtube playback ability (I put on some elevator muzak waiting for the rest to join), although I had to do a bit of hunting to get rid of the video again. :)
Doesn't this make jitsi meet _effectively_ chrome only until they better support firefox/safari/etc[2].
[1]: I get "It looks like you're using a browser we don't fully support....We recommend to try with the latest version of Chrome or Chromium" when trying to use it.
[2]: Sounds like webrtc isn't well supported and fairly buggy for some browsers, apparently?
So it "works" on Firefox, but the experience will be degraded when scaling up to more users. Hopefully FF can prioritize this feature now that the entire world needs high-quality video conferences on a regular basis.