Android's tried-and-true 3-button navigation system is still available on modern phones and tablets running the OS, and I hope it stays that way.

Android 16 extends predictive back navigation to three-button navigation. You can now see a preview of the previous screen by long-pressing the back button. Additionally, apps targeting Android 16 ...

Dive into Google Material 3 updates, featuring new FAB sizes, optimized menus, and split buttons for a better user experience on Android.

For 3-button, you can swap the Back button from one side to the other. For gestures, you can choose from two layouts, decide if you want the gesture hint bar to show, adjust sensitivity, and more.