How to Enable Camera on Microsoft Teams on Mac
If the camera isn’t working within the Microsoft Teams App, then you might need to look at the camera permissions.
To do this, follow the steps:
1. Click on System Preferences.
2. Go to Privacy & Security
3. Click "Microphone" > toggle ON Teams
4. Click on "Camera" > toggle ON Teams
It's always good to do a device restart after makign the changes or close and reopen the Teams app.