macOS Monterey 12.0.1 on a new 14" M1 Pro MacBook 14"
Microsoft Remote Desktop Beta (MRD Beta) will allow sharing of the Connection Center window in Zoom, Teams, etc. but not an active workspace, instead displaying a blank white screen on the remotely connected computer. Also, screenshots using any of the standard Mac keyboard shortcuts or using Preview will not display the MRD Beta in the screenshot/file created, instead showing whatever is behind the workspace window.
All of the above works for MRD downloaded from the Mac App Store. Both the App Store and Beta versions have identical settings in System Preferences -> Security & Privacy -> Privacy. 'Allow apps downloaded from' is set to 'App Store and identified developers'.