When you stop sharing your location, the other person typically does not receive a direct notification alerting them that you have stopped sharing. However, they can often infer it from several indirect signs. For example, on iPhone using Find My, the person you shared with will see your name disappear from their location list or see a "location expired" message in their Messages app conversation with you if you stopped location sharing through iMessage. Google Maps notifications related to location sharing also stop automatically when you stop sharing your location. Overall, no explicit notification is sent, but the cessation of location updates or disappearance from lists can inform the other person that sharing has ended.
