> I don't really buy this explanation. I'm talking about using a single external monitor here, a monitor which I regularly also use with linux (intel/amd) lapto

> I don't really buy this explanation. I'm talking about using a single external monitor here, a monitor which I regularly also use with linux (intel/amd) laptops without a single issue. Might be model-specific then. It’s not something I’ve seen with displays from Asus, Alienware, and Apple. I briefly owned a Dell monitor that would periodically flicker but it got returned. > That's not really a good reason though. It still doesn't explain why the restriction exists. Why can't a non-maximized/fullscreen window be displayed on top of a fullscreen/maximized window? What problem does that solve? Probably because it’d be easy for windows to get “lost” if the fullscreen window were focused and non-fullscreened windows fell behind it, with there being no obvious indicator that those windows exist.