Certainly. Happy to update you. An hour before the appointment, the camera appeared to be working properly. However, I did keep the appointment. The very helpful Apple employee ran all of their diagnostics and the phone passed. The employee did say no guaranty it is fixed, so please come back potentially for a phone swap. She did say maybe it will be necessary to do a reset. I am trying to avoid that since my set up took half a day plus re-entering passwords etc.
Later that day, the problem came back and has been intermittent since. Today, a friend told me to clear the safari browser history which I did. I tried using it multiple times today and so far it is working correctly. I am hopeful there was something conflicting with the camera. I have a ton of unused storage.
I upgraded from a 12 Pro and set up the 16 Pro with the side by side method. I never had this issue with the 12 Pro, but potentially something went wrong in the set up/transfer.
If it acts up again, I probably will need to do the reset and eat up hours again, but hoping not.
Hope this is helpful.