The ebike class 1/2/3 concept is stupid puritan nonsense driven by cyclist jealousy and serves only to limit the usefulness of ebikes as car replacements.
The thing that most of the people here seem to overlook is that class 3 bikes exist because of EU legislation that came into effect in 2016. They are required to have a license plate, insurance and the rider has to have a license and a minimal age of 16.
Belgium seems to be the only country to allow them on regular bicycle infrastructure in the EU but the Netherlands are experimenting with that too.