Maintain Anonymity as a Zoom Meeting Participant
You can change your name before joining a meeting:
Use headphones to prevent others in your household from hearing (protect others’ anonymity too).
If you’re concerned about your house showing in the background, sit with your back facing a wall.
If you’re concerned about being seen on camera at all, you can always disable your video.
You can dial in from your phone so that only your phone number appears and no video appears.
You can temporarily turn off your camera and turn it back on if needed.
(Borrowed from Inter-Group Association of A.A. of New York)