That is what I thought initially, and I did check the details and the performance page, there was nothing that indicates the GPU was even working. You can see in my last screenshot that MSFS was using GPU-0-Copy and I thought that was odd. When I tested XP, it was fine and used GPU 0 - 3D. Yesterday I reverted my Nvidia to a November update. When I started MSFS today, now the display is as expected as you can see in this screenshot.
I don’t know what happened overnight, I’ll try some flights to see if the rollback has permanently resolved the issue for me.