How To Quit Apps On the iPhone X, XR, XS and XS Max
Since the iPhone X-series models have no Home button, new users sometimes struggle with how to exit apps and get back to the Home screen. The Home indicator line at the bottom of the screen is the key to doing this. However, it is important to realize that this line is at the bottom of the screen in any orientation. So it won't appear on the right when you are playing a game in horizontal mode, but at the bottom of the screen under the game or sometimes over the graphics at the bottom of the game.