I've been using the discontinued flatpak for the last month and it works fine.

Alongside it, I've also used the unofficial teams-for-linux flatpak which also works well.

I tried Chromium but couldn't get audio working and in Firefox, audio worked but screen sharing didn't as in, I couldn't see my lecturer's shared screen but I could see it in Chromium, so I had Firefox opened to hear the audio and was following along the shared screen on Chromium.