Thanks, Ralph, DGS & Erwin;
Ralph, I appreciate that you could recreate the problem. That's outstanding. I guess I can only hope it's fixed in a future release, if indeed, it can be fixed. Otherwise, I sent plenty of Bug Reports , and added details to maybe half of them, so maybe GS can use that info.
DGSketcher, I don't need to run full screen, but during my commute, when I'm only using the MacBook Pro's 15" screen it's helpful. Plus, it's a workflow I've grown accustomed to at all times (even when using external displays) when I'm able to swipe between open apps.
Erwin, that's a good piece of info, since I do have the Nvidia GT 650 card (along with the Intel). That makes me more hopeful, that a fix is possible.
Thanks again,
Joel
AC 6.5-27; macOS Sonoma; 2019 MacBook Pro 2.4gHz, i9