Android Auto also doesn't let you type while driving. Source: I was the one who wrote the system UI and Keyboard integration. It's still there last time I checked.
I literally just used android auto, while driving, to type in an address in Waze using the on screen keyboard(well, my wife was driving). Stock android on a Samsung Galaxy S24 Ultra.
Except apps like Waze will show you "this app is being controlled by Android Auto" and won't let you do anything on the phone's screen, you have to use the Android Auto display to interact with it.
If they do, it’s not on Apple or the car manufacturer for making it unsafe. There are a laws all over the world about having an infotainment system and distractions.
There's a bug. I don't know how to replicate it, but a week ago the keyboard popped up while I was in (slow) motion (I was trying to select a previous saved destination) and I tapped on a random key to see if it worked, and it did. This was the only time in 5 years of me using Android Auto that it happened.