Swipe up from the bottom and pause to open the app switcher
Swipe left or right to find the app window you want to close
Swipe the app card up to close it
Repeat for any other open app windows
To close Safari tabs, open Safari
Tap the tabs button
Tap and hold Done
Choose Close All Tabs
To close a specific Safari tab, tap the X on the tab or swipe the tab left
To close a split-screen or picture-in-picture window, tap the close button on the window if available