Thank you for the reply Brandon.
Yes my Ipad software is up to date with OS15.5 and I have already tried a hard reboot to no avail.
The fact that my front camera works for still shots and for video recording makes me think the issue is not hardware but within the software; maybe something got corrupted. I do use Norton AV and general surf the web using their VPN so I am confident I do not have a virus.
We are an Apple family. Over the years we have and in many cases still have in use 1 Ipod, 1 Ipad mini, 3 IPads, 1 Ipad Pro, 8 Iphones and 4 pair of various versions of Air pods, not to mention the Apple TV, but I do not think I will be paying upwards of $500 to fix my Ipad Pro. In general the quality has been excellent except for having to have a defective set of air pods replaced and now the Ipad acting up.
Seems like there should be a less expensive option when our gear craps out after just a couple of years. It's kind of ironic but now when I want to Facetime I put away my newer Ipad Pro and use my 10 year old Ipad mini which still works well.