There are players in the OpenStreetMap ecosystem attempting to change that. I know the team behind Organic Maps are actively working to make their app as viable as possible by sourcing appropriate data for example.

Organic Maps is amazing.

I actually find that it blows Google Maps out of the water for cycling (which is why/how I discovered it). I haven't really used it for driving much because my own car has a builtin nav, so can't really comment on that.

YMMV of course.