Real world range test shows a much smaller difference between a FF & light e-bike that the numbers would suggest. Less drag, less weight, & a harder working rider will do that I guess.
I did 31 miles on Sunday on my new 360 wh orbea rise ( bike) battery. I rode with a friend on a 625wh bosch gen 4 bike. I had the same bike for over two years and most of our rides ended in roughly the same battery consumption on the bosch.
After the 31 miles my battery was on 46% and his bike was on 56% , I am staggered and impressed that these mid level bikes achieve so much , yes maybe I worked a little harder and he was faster on some climbs but that's the reason I purchased a middle weight bike and its more rewarding for it.
And to think i was worried about range
I've been lugging around a 25kg bike for over 2 years and unfortunately where i live it doesn't warrant it