When Google Meet reports that your camera is blocked, it prevents others from seeing you and can be caused by permission settings, hardware issues, browser settings, security software, or privacy features. Below is a concise, structured guide to diagnose the cause and apply fixes for Windows, macOS, Chrome/Edge/Firefox, and mobile devices.
Google Meet does not run as a standalone program (unless you use the PWA). It runs inside a browser. That browser acts as a security guard, asking your permission to pass your video feed to the website. google meet camera is blocked