Main hotspots seem to be Western Europe, East and West coasts of the US and South Eastern Australia…
Population density is the biggest factor though, no one lives in central USA (or central Oz), hence the mid west* is usualy defined as finishing somewhere east of the geographic center of th econtinent! West of that is a whole load of flip all untill you get past the rockies and head down to the coast again.
If you overlayed that map with one showing population density I bet there’s very few areas of dense population where it’s not not popular. And then there’s probably some other reason, China has no internet access, India has horrific roads.
*which in itself has a low populaiton density, corn, corn, corn, meth lab, corn corn, farmstead, corn, corn, meth lab, etc