Exactly this - Google maps seem to really have all the drivable roads in all areas I've been in but hardly have anything at all that is pedestrian only as far a

Exactly this - Google maps seem to really have all the drivable roads in all areas I've been in but hardly have anything at all that is pedestrian only as far as I can tell. As an example in 2019, we climbed on Mount Shiroyama above Kagoshima and looking at Google Maps the only way down to the city was the one we came from or some car only tunnels.On the other hand OSM listed a path with lots of stairs the locals apparently use to get up and down the mountain quickly. If we used only Google Maps we would have to backtrack quite a bit over parts of the city we already went to but instead we arrived back in the city quickly just in time to get a tasty evening ramen. :)