I prefer voice controls to either, but don't have a strong preference between physical or digital because I end up looking either way. Subscriptions on the other hand can fuck right off.
I think the looking I do with manual controls is a quick glimpse to put my hand on the control. After that, I can adjust while keeping my eyes on the road.
I find with digital that I stare at it during the entire adjustment period.
Subscriptions do need to die though. Especially car subscriptions.