but the quality of OSM maps is way above Google in terms of details.
For some data in some part parts of the world. In rural (and even suburban) Sweden for example half the buildings are missing, many roads aren't named and search is straight up broken. What it will give you over Google is that every hiking trail and bike path is included.
I experience the same in Bulgaria - many street names or street numbers are missing or even wrong (e.g. I search for a street and Maps.ME finds a feet track inside a park 2-3km away of the real street)
True, but it is also one of the most commonly used functions for mobile map apps, and without that feature working reliably your app can never become someones primary map app. At best you can become a backup app for those times Google/Apple Maps doesn't work.
For some data in some part parts of the world. In rural (and even suburban) Sweden for example half the buildings are missing, many roads aren't named and search is straight up broken. What it will give you over Google is that every hiking trail and bike path is included.