Based on the results provided by top tech support sites (like Google Support, MakeUseOf, and Lifewire), here is the effectiveness of the standard advice:
If your camera works in other apps but not in the browser, or if it isn't showing up at all, your drivers might be outdated. Right-click the and select Device Manager . Expand Cameras (or Imaging Devices). Right-click your webcam and select Update driver . Choose "Search automatically for drivers." 7. Troubleshooting Chrome Specifically why is my google meet camera not working
Scroll down to "Let desktop apps access your camera" and make sure your browser (Chrome, Edge, etc.) is enabled. Based on the results provided by top tech
Google Meet requires explicit permission to access your camera. If you previously denied this or a browser update reset permissions, the camera will appear as a grey box or not start at all. Right-click your webcam and select Update driver