Google Maps has a few quirks. Here in Germany it always prefers to send you through 30km/h residential zones. Which might be somewhat faster than taking congested main roads but those 30km/h zones are terrible to drive through. There's always cars parked at one side of the street so you have to wait for oncoming traffic. The streets usually are very narrow. So the stress level to the driver is way higher.
I also noticed a quirk where it would send me 2km down a road just to turn back and drive the 2km back to where I came from. First few times I thought I must have added a waypoint but nope - sometimes it just makes you waste time.
Apple Maps might be better but I can't use it as it has a quirk with "Environmental Zones" in Germany. There are 3 kinds of zones: Red, Yellow and Green. Your car has a badge with a color (depends on how environmentaly friendly it is). So a green badge can enter every zone, a yellow badge only yellow and red zones, and a red badge only red zones.
Now whenever Apple Maps encounters such a zone in the route the navigation switches to a waaaay zoomed out view (tends to display the whole route on a map). So you can't really see the next turn, etc.
To get rid of that view Apple Maps expects you to click on OK. Which really sucks while driving.
What's infuriating is that you can't turn off the env zone checking or even just tell Maps that "my car has a green badge so PLEAS FOR F SAKES STOP PESTERING ME EVERY TIME YOU ENCOUNTER A ZONE". (Those zones are very common - every bigger town is a green zone. So Apple Maps becomes _really_ unusable on longer trips).