I am on beta 1.37.8.0
Noted this recently. After launching MSFS in full screen mode and after “Checking for updates” page I’m getting this screen for a fraction of a second then sim continues loading in windowed mode. “Checking for updates” page took about 3 sec before but now it’s around 20-25.
Sim continues loading normally but in windowed mode. So I switch it back to full screen.