Camera not working

I'm unable to use the camera on my Macbook. I've had this Macbook around 1 year and haven't been able to get the camera working since I bought it, but I've never really needed it before. Now I need to be able to use it daily for work.

When trying to use FaceTime of Photo Booth I see a message telling me that there is no camera connected. When trying to use it with Safari, Chrome, or any other app I'm told that a camera cannot be found. In About This Mac > System Report > Camera, I see "No video capture devices were found."

I'm not asked to give permission for any apps to use the camera. When going into System Preferences > Security & Privacy > Privacy > Camera, there is no + button to add apps to the list.

So far I've tried these methods I've found on numerous websites:

-Updating to the most recent version of macOS

-Turning off Screen Time

-Resetting SMC

-Going into Terminal and using sudo killall VDCAssistant and sudo killall AppleCameraAssistant

-Resetting the camera permissions using tccutil reset Camera in Terminal

-Force quitting VDCAssistant in Activity Monitor

None of these methods have any effect on the issue.