When I was vacationing in Portugal Google Maps consistently sent us down the narrowest two-way single-lane roads that existed. Even after I explicitly picked the saner route it kept rerouting onto the steering wheel death grip roads.
And in some cities with grid layouts, Google Maps loves to route a zig-zag stair pattern with 15 turns to save you thirty seconds vs the obvious single turn L-shaped route.
I often wish the app had a "simplest route" option.