Add the mute participant option to their icon on the main meeting screen. The mute feature is available under the participant icon, but it would be helpful to find the person right on the main screen. With large groups of people in the meeting, it would be helpful to have the mute option right on the screen for the person who is creating too much background noise or feedback vs scrolling through the list of people in the participant window.
It would also be helpfull if the Mute All could have a keyboard shortcut simulare to the self Mute/unmute shortcut. FYI: Ctrl+Shift+M will toggle mute on yourself.
I use a Macro keyboard for all my meeiting controls. It would make meetings much better with a shortcut for this and other meeting options.