As a result, I took my second monitor and mounted it in portrait mode, and to be honest, I don't think I could ever go back.
If the Mouse is not adjusting to the portrait mode on a dual-monitor setup in Windows 11/10, follow the solutions mentioned below. One of the quickest solutions for this issue is restarting the ...
some monitors can be swiveled into portrait mode. See portrait monitor and landscape. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.