On your Mac, align, merge, resize, switch between, and close one or more app windows.| Apple Support
Quickly arrange windows on your Mac by dragging them, using menu options, or using keyboard shortcuts.| Apple Support
On your Mac, use Mission Control to move between apps that are open or in full screen or Split View, or between spaces you created.| Apple Support
On your Mac, work in two apps side by side at the same time.| Apple Support