I have a huion and on windows 11 and so far no problems regarding things popping up. like you i dont always keep my drawing tablet on, its only on for use. took me awjile to work out the whole thing about primary display, but now i have my drawing screen set up below my main monitor so it acts like the lower half of a screen. all i can think is to check your drawing tablet is where your computer think it is. but unless things are dragged to it you should not have this problem.