[potato3732842]

Because that isn't actually the task. you don't need the fastest, just "good enough".

So you'll pick the major highways and follow any detour signage like you would have in the old days.

[kjkjadksj]

In the area where I live traffic planners have shored up all the inefficiencies that led to those apps saving you time in the past. Road diets. Right turn only out of side streets with a hardened median preventing a left or straight route. Speed bumps. Downright punitive light cycle timing (I’ve seen almost 5 minutes before). You often fare far worse in fact taking those labyrinthine google maps/waze circuits through these residential side streets and shed time just sticking on the major arterials and highways.