Sometimes minimized windows move to other monitor Windows 10

Try this as a workaround and let me know if it works for you: if you have a window for which this is occurring, move the window to the desired monitor, then click the "Restore Down" button in the upper-right corner of the window to make it go from full-screen to windowed, then click the button again to reset it back to full screen. From that point on, when you minimize the window, does it stay on the right monitor? My theory: the bug in Windows is that the window always returns to the monitor where the window started in windowed mode vs full-screen.