Pokémon GO uses an old snapshot of the OSM data to prevent this type of abuse. I don't know exactly how old the current map is, but it used to be like 3+ year

Pokémon GO uses an old snapshot of the OSM data to prevent this type of abuse. I don't know exactly how old the current map is, but it used to be like 3+ year old back in 2022. They have been minors update since, but those abuses won't most likely ever be featured in-game unless they go unnoticed for years.