Additional features, settings, or issues not covered by specific Microsoft Teams categories
MacBook Pro with Bootcamp Win10 Pro x64.
Same issues. Camera shows black screen when enabled in a meeting.
Tried setting all the security and privacy settings. Did re-boots and re-installs of MS Team. Nothing worked.
I finally booted into Mac OS and updated MS Teams to latest version. Did a test video call to make sure everything is working in Mac OS. When I booted back into Windows again the camera was working. Hope this helps!