Use Google Maps on backend and display Open Street Maps in Template

Hi,

Yes, it is possible. Field Google Maps and OSM save the same data format in the database so we can display the OSM on the frontend based on the value of the Google Maps field. Here is the sample code

$location = rwmb_get_value( 'google_map' );
$map = implode( ',', $location );

echo RWMB_OSM_Field::render_map( $map );

Read more on the documentation https://docs.metabox.io/fields/osm/#template-usage