When you exit an app, and you are using Swipe Gestures, the app icons in the background do not appear until you release your finger from the screen. So, when you pull the app to exit, the app icons are gone from the home screen until you lift your finger.
Also if you do a little slow exit with your finger (you exit the app slowly), the split screen button doesn't fade away. It just stays on the screen for a little.
