Yes and no
Are full screen apps on Windows 10X a good idea?
One of Windows 10X’s more interesting design choices is one that forces all apps to run full screen, just like Windows 8. If you’ve tried the public build released to developers, you’ll know that you cannot make an app run in a normal window. The button to restore a window down has been outright removed from the title bar. It’s just the close and minimize buttons on Windows 10X.