Travelling from Durango Colorado to Reserve New Mexico, Google Maps routed me to a "road" that was simply a dry stream bed, in the middle of Navajo Nation, in high desert wilderness, many miles from human habitation. It happened gradually. First I was directed to a well maintained gravel road, then to dirt track, which forked and forked and slowly faded to nothing. I was driving a 4x4, had an almost full tank, a load…
This is why I desperately want a routing mode for 'easiest' drive. Surface streets only, no left turns onto busy highways just to save a minute, no weird shortcuts through neighborhoods, keep me on the highway. I've had so many times where google has had me drive through sketch areas of LA which ended up taking more time dealing with cross traffic. All they have to do is give up on quickest route.
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.