Used osmand from f-droid in Indonesia few weeks ago. Google maps was basically useless. OSM map in southern Lombok did send me down a crazy dirt path that was mapped as main road. That was fine for me, I was just exploring the country on a scooter not relying on it for anything important (uploaded fixes when I got back to the home stay).

Similarly experience in Philippines in January, Google maps had basically nothing in Palawan but OSM had great coverage.