A launcher app is what makes your home screen look the way it does and controls how you organize and interact with your apps. The launcher that came with your phone puts the Google search widget and a clock widget on the home screen. See what that home screen looks like and how you can customize it.
To totally change the look and feel of your home screen, you’ll need to download a new launcher and update your settings to use it. Launchers often come with new wallpapers, gestures to interact with your phone, and customizable elements for your home screen.
You can always go back to the original launcher and home screen.
Tap Default apps > Home app.
Select the launcher you want to use.
To switch back to the standard home screen, select Moto App Launcher.

You can only delete launchers that you installed.
Touch & hold the launcher's app icon, then tap 