All it takes to get to the Discover page on an Android phone is a swipe from left to right on the home screen. If you’ve got several home screens in play, you need to keep swiping until you get to the ...

Android Auto will let you place widgets beside apps in split-screen (about 1/3 of the display). Set up from 'Customize Earth' on phone—pick an app and widget; current beta may limit you to one widget.