https://www.cnbc.com/2018/05/09/android-p-gestures-are-like-the-iphone-x-controls.html

Google has a new version of Android coming to your phone with features that will make it act more like an iPhone X.

Right now, most Android phones have three software buttons on the bottom of the screen. One returns users to the previous screen, one takes you right back to the home screen and a third brings up a menu.