> The main problem now is that it works fine

Except from:

* notifications for channels

* search

* using more than one org (needs app restart!) although screen sharing between 'classic' and 'web' editions works only if sender's and receiver's graphic cards share a hw-accelerated video format blessed by teams. Not, it's not easy to check what edition you are running and you can't change it without poking js variables by hand

* inconsistent read statuses between devices

* 'incoming call not shown at all' bug (but you get a missed call notification)

* can't join two video calls even in two separate windows

* random audio device switching on every morning (even if you don't close the app and computer for the night)