When something is focused with VoiceOver, if you double tap on the screen, it will be like interacting with the centre of the focused element. If you need to change that, you can customise the accessibilityActivationPoint.

https://developer.apple.com/documentation/objectivec/nsobject-swift.class/accessibilityactivationpoint

Spotify app icon in iOS Home Screen. Activation point is in the middle. So if you double tap, the app will open. If you swipe down, though, VoiceOver says