I was orginally bummed that using Android Auto or Carplay didn't allow full screen in my 23 AT4X. I use Android, and feel Android Auto is clunky.
I actually have a wire Carply device, which ironically runs full Android OS, that allows me to install any Android app onto the device (which shows up as a phone). Yes, this means one can install Netflix or similar and watch it on the display. But only the left 2/3rds of the display, as the right 1/3rd is for the clock, small navigation screen, or music app. I have come to like this, though. I use my Carplay device (again, it runs full Android so can install/run any android app) for multiple things on the left 2/3rds of the display, but use the right 3rd for the vehicles built-in google maps Nav. That way I can have the left 2/3rds of the display for my carplay (android) apps if I want, and the right 1/3rd of the screen for google navigation. This works well for me.