I have mutter 3.36.7+git20201123-0.20.04.1 installed from focal-proposed for over two weeks now and gnome-shell, with two monitors, is running great without any problems.
I have mutter 3.36.7+ git20201123- 0.20.04. 1 installed from focal-proposed for over two weeks now and gnome-shell, with two monitors, is running great without any problems.