You see the home screen when you turn on and unlock your phone or touch
.
Swipe right or left to move between Home screens.

up from the bottom of the screen to see the list of all your apps. Navigation:
takes you back one screen.
returns you to the Home screen from any app.
lets you switch between recent apps. Touch to see a list of recent apps. Touch twice to switch between your two most recent apps. Touch & hold to use split screen.
lets you zoom in/out if you have visual impairments. Appears after you enable accessibility settings.
You can add more Home screens to the right. To add a page, drag an app shortcut or widget to the edge of an existing page and place it on the new screen.
To remove a Home screen, drag all apps, shortcuts, widgets, and folders off the screen. After you remove the last item, the Home screen will be removed.
Organise it:
Change how it looks: