You can use iPad multitasking features to work with multiple apps at the same time, and quickly switch between them. On supported iPad models, you can also use Stage Manager to resize, overlap, and group the app windows on your screen.
When you’re working in one app and want to open a second app, you can reduce the size of the first app window so that it floats over the second app. Tap supported iPad models, you can use Stage Manager to view your open apps on the screen all at the same time and easily navigate between them.
To turn on Stage Manager, swipe down from the top-right corner to open Control Center, then tap Switch an app window to a Slide Over window
Move, resize, and organize windows with Stage Manager