Hello Neal Flaster,
You are encountering this difficulty because the "Meet Now" feature has been relocated within the "New Teams" architecture, leading many users to believe it was deprecated. However, relying on "Meet Now" for hardware validation is inefficient. The most precise method to verify your camera's input stream, rendering capabilities, and driver execution is through the device settings console directly within the client, which offers a dedicated preview feed independent of network session initiation.
To immediately validate your video feed, navigate to the Settings and more menu (the ellipsis icon located in the title bar next to your profile picture) and select Settings, then access the Devices category. Scroll down to the "Video settings" section. Here, the Teams client renders a raw feed from your active video driver. If you see yourself, the hardware link between the OS and the application is functional. This is the "static" test.
For a more rigorous "dynamic" test that simulates actual packet traversal and service execution, look for the Make a test call button under the "Audio settings" section on the same Devices page. While primarily labeled for audio, this feature initiates a bot-driven session (SIP/RTP flow) that activates your camera in a live call environment. During this automated session, you will see your video feed in the corner, confirming that the client can successfully encode and transmit your video stream under meeting conditions.
Regarding the "Meet Now" feature, it has likely not been removed but rather moved to the Calendar tab in the sidebar. You will find the Meet Now button in the top-right header of the Calendar view. This allows you to spin up an instant private meeting instance (ad-hoc meeting) where you can verify your stage presence if you prefer a manual check over the automated diagnostic tools. If your camera remains black in all these scenarios, verify your OS-level privacy access control lists by going to Windows Settings > Privacy & security > Camera and ensuring "Let desktop apps access your camera" is toggled On for Microsoft Teams.
I hope you've found something useful here. If it helps you get more insight into the issue, it's appreciated to accept the answer. Should you have more questions, feel free to leave a message. Have a nice day!
VP