Check if I am heading towards a or away from a point google maps flutter

Question

I am using https://pub.dev/packages/geoflutterfire2 to get some places that are within a radius.

 var reference = geoFlutterFire
        .collection(collectionRef: firebaseFirestore.collection(path))
        .within(
          center: center,
          radius: 0.2, //in km
          field: field,
          strictMode: true,
        );

Once the device is within that radius a notification is created. My problem is that even if the device walks parallel to a target point but within the radius I get the notification which is fine from the point of view of geoflutterfire2. The package is doing what it is supposed to do. Now, is there a way to figure out if I am walking towards a point?