The Xamarin.Forms.Maps NuGet package is required to use maps functionality in an application. In addition, accessing the user's location requires location permissions to have been granted to the application.
Map control is a cross-platform view for displaying and annotating maps. It uses the native map control for each platform, providing a fast and familiar maps experience for users.
Polyline elements allow you to highlight specific areas on a map. A
Polygon is a fully enclosed shape that can have a stroke and fill color. A
Polyline is a line that does not fully enclose an area.
The native map app on each platform can be launched from a Xamarin.Forms application by the Xamarin.Essentials