I purchased Photo AI v1.3.0 today and tried to evaluate it with a few photos in Demo mode with very little effect. So I went to full screen to look at the results more closely. The application will not exit full screen mode using fn F, the drop down from the View menu, or from the little green icon drop down when it showed up. After rebooting the iMac (running with intelCPU and MacOS Monterey) and restarting the app, it reopened in full screen mode with the View drop down menu showing the “Enter Full Screen” option when it was already in that mode.
I can now control enter and exit full screen from the View drop down menu, although the program still does not respond to fn F command to either enter or exit full screen. So it is manageable for now. Thank you.