Samsung Galaxy A13 User Manual page 53

Apps and features
Pop-up view
Tap the Recents button to open the list of recently used apps.
1
Swipe to the left or right, tap an app's icon, and then tap Open in pop-up view.
2
The app screen will appear in the pop-up view.
If you tap the Home button while using a pop-up window, the window will be minimized
and displayed as an app icon. To use the pop-up window again, tap the app icon.
Moving pop-up windows
To move a pop-up window, tap the window's toolbar and drag it to a new location.
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