UICollectionView, a SwiftUI paging ScrollView or TabView), show an overlay or pause ad in the current cell only. An overlay or pause ad out of sight for about a second while the app is active, such as a cell swiped away while its view stays in the hierarchy, ends with .interrupted and frees the screen for the next ad. An overlay’s duration, and the view time the SDK reports (overlayViewDuration), count only the time the ad is seen.