Our one year old 2017 LT has Pandora on the home screen but it only works thru the Onstar wifi. Without the Onstar wifi you use Pandora on your phone with bluetooth or Carplay/AA. Car came with Carplay but never has had Android. Pandora on home screen is much more elegant looking than the Carplay version. Have you looked at both pages of the home screen?
Edit: Removed reference to third home screen (Gen 1 only).
Edit: Removed reference to third home screen (Gen 1 only).