When I am working with 2 or 3 or more Adobe Programs at same time, I have all the panels from all the programms on a second screen. If just one programm is open, then it is fine. But if there are more Adobe Programs running like Photoshop, Illustrator, Indesign and so on at same time, the screen is full of panels. There are no way to distinguish which panel belongs to which program. That disturbs the workflow. Back in the time of Windows XP and CS products, the panels of the Programs that were not currently used were grayed out.