I think it's less about tourist vs local, and more about the breadth of restuarants you have available. I live outside of a major metropolitan area in South Europe, there are restuarants going out of business and opening up every day in the city, no one can keep track of all them.
If you can just say "Peruvian" and it finds all restaurants around you within 2km, you might get 30 options. At that point, using the wisdom of the crowd for some initial filtering makes a lot of sense.
Personally I love going to completely unknown restaurants that has just opened and have zero reviews yet which Google Maps helps with too, but looking at how others around me use Google Maps, a lot of them basically use it for discovering new restaurants to try, and we're all locals.
If you can just say "Peruvian" and it finds all restaurants around you within 2km, you might get 30 options. At that point, using the wisdom of the crowd for some initial filtering makes a lot of sense.
Personally I love going to completely unknown restaurants that has just opened and have zero reviews yet which Google Maps helps with too, but looking at how others around me use Google Maps, a lot of them basically use it for discovering new restaurants to try, and we're all locals.