What are your views and what do you think is safer?
A Car Head unit that can do Navigation, IE using Android Auto or Apple Carplay
Or having a Dash/Windshield mount with your phone?
If you have the Head unit, And you are in Nav mode what happens when Texts come in. I personally like DND mode when I drive but if I am using Maps and a text message comes in it pops up and can be a distraction (often comes in over the navigation data)