For hiking OSM blows Google out of the water. I'm surprised how detailed OSM is with random forest trails and shortcuts, resting spots, viewpoints, etc.
The main thing I use Google Maps for is searching for stores etc in cities. I hope such information becomes easier to contribute to OSM.
Perhaps a Pokémon Go style game for map updates could work? StreetComplete[0] is good, but the rewards are kind of boring.
Recall that Google as a company doesn't care about making people's lives easier and better, they care about inserting themselves as a middleman in aspects of your daily life and then trying to sell ads about it. They might invent a "talk to your grandma anytime" app and tell you it's because they love your sweet grandma, but the only things that will get attention and dev work are the bits that figure out how to sell you more stuff.
The main thing I use Google Maps for is searching for stores etc in cities. I hope such information becomes easier to contribute to OSM.
Perhaps a Pokémon Go style game for map updates could work? StreetComplete[0] is good, but the rewards are kind of boring.
0 https://streetcomplete.app/