[martijn_himself]

Yes- in the Netherlands the term 'fatbike' is pretty much synonymous with the battery powered bikes only (I presume elsewhere this may be different). They are mini motorcycles really- but exempt from all the rules and regulations that would apply to regular motorcycles.

[Lio]

Elsewhere “fatbike” just refers to the tyre size.

Pedal fatbikes for riding on snow and sand have existed for at least 20 years I’d say.