It's tricky because you're now cropping into rectangular apps which may actually use all the pixels they get and want hit testing in them.
When Windows went to a 1 pixel border and shadow effects, it still had hit testing in a region around the window to account for that. No idea what they're doing with rounded corners in Win11.
When Windows went to a 1 pixel border and shadow effects, it still had hit testing in a region around the window to account for that. No idea what they're doing with rounded corners in Win11.