the screen is only intended to set up the user for a meeting.
If the meeting type is "Classroom" the user will be disabled on Join.
However if the attendee is needed to "present, show or speak" the user is correctly set up.
The icon will soon show 2 more states:
-grey of no device has been detected
-red if permission has been denied
Unfortunately we have to test on a bunch of browsers to manage this correctly