The Google Maps app will sometimes request information about the places you've recently visited, such as reviews, ratings, basic information, or photos. While these prompts are intended to improve overall user experience, many find these notifications to be intrusive or distracting.
This article will teach you how to disable location-based notifications on Google Maps.
Turn Off Google Maps Notifications
Open the Google Maps app and tap Menu > Settings > Notifications.
Select the Question about places option, and then, clear the Share what you know about places you've been checkbox: