Bike fit / correct riding position

I believe women tend to have LONGER legs and SHORTER upper bodies relative to their height compare to men?

They, in general, don't. Our western aesthetic finds long legs attractive--- linked to preception of youth whence fertility--- so creates the image of longer legs though fashion. Its as they say "smoke and mirrors".

Leg length is particularly interesting amongst elite cyclists since longer legs tend to be advantageous-- just as shorter legs to swimmers and height to basketball players. That means that one would expect the sport to define a certain kind of preference filter towards individuals with comparatively longer legs. I was quite suprized when back in the 1980s the data collected on female elite cyclists did not show this response.

(but men on average will have larger feet relative to their height)?

Again they really don't. Women wear smaller shoes since they are on average shorter and they tend to purchase shoes that are comparatively smaller. Small feet, like long legs, is considered sexually attractive so women's shoes tend to typically be made in patterns to give the impression of a smaller foot. Compare the the court shoe to its female high street variant: the "pump". Women, in turn, tend to try to fit into shoes like Anastasia into those glass slippers--- witness the high frequency of noncongenital foot problems amongst women.