I'm using bootcamp and Windows 10. If I choose the fullscreen option of the ephinea launcher, is there a command I can use while playing in order to switch desktop or minimize the game screen? Command-tab doesn't seem to work when ephinea is running.
You cannot minimize the window.
PSO catches and discards the Windows key, if that's what Command + Tab gets translated to, then that's the reason why it doesn't work.
If you hover over PSO in the task bark and right click the window you will notice no menu appears either.