Lots of manufacturers stop calling that frame shape woman's bikes, but rather find terms like step through or low step and so on to be better suited. This frame design is a lot more accessible for people who aren't as mobile anymore (think old people, people with hip problems, heavy people) and are also much easier to handle with tall cargo on the back, typical example would be a child seat.
For the average person, this frame design is probably preferable as there are no benefits to the typical male frame shape.
My parents think it looks odd when a guy sits on one of these, but then my parents are in their sixties :>
We have that in Germany, 25 for regular e-bikes. Anything above requires you to register and insure your bike, you get an actual license plate and you are considered a vehicle not meant to use regular bike lanes.