One of the devices that I use to control Roon is a Windows notebook computer with a 13.3" display running a resolution of 1920 x 1080.
The Roon application will not display on this device without running in Fullscreen mode. This is only application that I have encountered this problem with.
Can the display functionality be changed to allow the application to run on devices of this size without having to be in Fullscreen mode. It is a very common size for notebook computers.