When embedding a vector street view map, 4 OSM tiles are indeed fetched. Files like: "https://maps.tilehosting.com/data/v3/ ... .pbf?key"
When I use a vector topo map, more files are retrieved:
4 OSM .pbfs
4 contours .pbfs
4 hillshades .pngs
Does this result in a billing of 12 map loads to display this topo map (as opposed to 4)?
As a follow-up question, do the sprite .png files also count as a map load?