Camera is blocked or not found error in Google Meet

Hi. After I upgraded to Big Sur, I could not turn on the camera option in Google Meet. Happens both in Safari and Chrome browsers.

I checked the browser settings and camera access is set to 'Allowed'.

In System Preference > Security & Privacy > Camera, Google Chrome is not listed 'Allow the apps below to access your camera' panel but I don't know how to add Google Chrome to the list.