I've never noticed that at work.
However, the saddles are often different.
I think it might be better now, having done a rough look at m/f versions of the same bike. I think some brands like Liv have slightly different geometry, but then again Liv only make women's bikes. But they just need to fit and be comfortable, and not all women will fit a "woman's" bike better than a "men's" or unisex frame. Agree completely on saddles.