just checked it by running a project from SED in full screen, and it does not crash exactly but shows a black screen after starting task manager, and never comes back to work properly, so a forced shutdown is needed... seems to be another bad engine behaviour, similarly to notebook closing-opening resulting in making a fullscreen game windowed, that cannot be fixed without game restart.
I used 1920x1080 desktop, 1366x768 game resolutions.