Issue: MacOS Monterey introduces some privacy issues that prevent presenting your entire screen or window unless you allow Chrome screen recording permissions in the Systems Prefences
How to fix:
Open a Google Meet and try to present a window or your entire screen. An error message will come up.
Quit Chrome (you must do this or the settings will not work)
Apple Menu (top left) > System Preferences > Security & Privacy > Privacy > Screen Recording > Google Chrome (check the box next to it)