Even roads that should be real are in different state of maintenance, there's some very bad roads here in central Italy, the likes that will tear a wheel apart from your car but due registration show white or even yellow on Google maps.

I do most of my intercity navigation trough state and road signage, with the navigator on but only for the last stretch, like driving me to the address once we're close.

Around here, "navigator shortcut" had already become a derogatory term for their inane suggestions.

There's some that provide a truck mode, but I don't know what weights they have on their algos.

Via Michelin used to have a main roads mode, but they didn't give turn by turn back then only planning.