You can change how you move between apps and screens: Settings > System > Gestures > System navigation.
Use these gestures to move between screens and apps if you chose Gesture navigation and see 
| Action | Gesture to use |
|---|---|
| Switch between apps | At the very bottom of the screen, swipe left or right. |
| See all recent apps | Drag up from the bottom, hold, then let go. |
| See all apps | Swipe up from the bottom of the home screen. |
| Go back | Swipe towards the middle from the left or right edge of any screen. |
| Go home | Swipe up from the bottom of any screen. |
| Open Google Assistant | Swipe diagonally from either lower corner of the screen. |



Use these icons to move between screens and apps if you chose 3-button navigation.




Use these gestures to move between screens and apps if you chose One Button Nav and see 
| Gesture | Navigation |
|---|---|
| Quick touch (tap) | Go home |
| Touch | Lock or turn off the screen |
| Swipe left (from right to left) | Go back |
| Swipe right (from left to right) | See list of recent apps |