Use navigation bar
Navigate with one finger
Use these gestures with the navigation bar to move between screens and apps.
- To see recently used apps, swipe up from the bottom of any screen. Touch one to enter the app.
- To see all apps, drag up slowly from the bottom of any screen.
- To switch between the two most recently used apps, swipe
right. - To go back, touch
.
Use 
navigation icons
If you want the navigation icons at the bottom of the screen instead of :
Settings > System > Gestures > Swipe up on Home button 
Then, use the icons at the bottom of your home screen:
takes you back one screen.
returns you to the home screen from any app.
lets you switch between recent apps.
TipFor visual assistance, you can add 
to open the Accessibility Menu or magnify what's on the screen.
to open the Accessibility Menu or magnify what's on the screen.