Allow Camera, Microphone, and Screen sharing for Google Chrome browser on macOS 11
Click the Apple icon in the top left corner.
Select System Preferences then Security and Privacy.
Click Privacy.
Click Camera in the left-hand column, then check the box next to Google Chrome.
Click Microphone on the left-hand column, then check the box next to Google Chrome.
Please go to Screen Recording then click on the "Click the lock to make changes, "enter your username and password, then check the box in front of Google Chrome.
Note: If you don't see the Camera or Google Chrome option, please update your macOS to the latest version (Click Apple Icon > About This Mac > Software Update...). Update your Chrome browser to the latest version as well.