Sony Xperia 1 V Help Manual page 53

5.
Tap to iconize the window.
The window will be displayed as an app icon. To return the iconized app to its previous window display, tap the icon.
You can drag and move the iconized app. If you drag the iconized app to
6.
Tap to close the window.
Related Topic
Using Side sense
Using the Side sense menu and the Multi-window menu
H-340-100-11 Copyright 2023 Sony Corporation
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(Close icon), the window will close.