Windows has this "feature" where if you drag a window between monitors it will "snag" and try to "half-screen maximize" the window on that side of the monitor.
Whether this triggers or not depends on the speed you move the window. I believe recently they changed the speed limit where this triggers and now my windows are constantly "snagging" when I just want to be able to move them to different monitors. I never use the "half-screen maximize" feature, so is there a way to get rid of it?