If you only want to see assets that are placed on a map, that is possible. Do note that reporting on the actual location of the asset on the map is not really possible. All you will get back is X and Y values.
Assets placed on a map are seen in the database a relations, as in having a relation with a map.
You can find two reports for assets on a map here: https://www.lansweeper.com/forum/yaf_postst10860_Location-maps-and-their-assets.aspx#post40676