In my opinion, you can't generalize that.
Where I come from, you can (Trude’s animal would have said). I meant: the division of the sleeping floor is typically more compartmentalized than that of the entrance and living floors; and load-bearing walls are more cleverly placed beneath each other than stacked. In terms of stair and drainage locations, the same applies in principle even where only drywall interior walls are planned upstairs anyway.
Whether to start with the ground floor or upper floor depends on the needs: first you have to list the required rooms (ground floor, upper floor). Then decide whether the ground and upper floors should be the same size.
Of course, the very first thing is the room layout — which rooms, how big, and on which floor. If you have a certain (target) budget in square meters, you will also usually divide it roughly 60/40 (“one-and-a-half floors”) or 50/50 (town villa).
I admit that for lay planners, starting with the upper floor initially appears intellectually awkward and unpleasantly strenuous, i.e., you understand the argument but prefer to leave the exercise to advanced planners. But the supposedly easier way (starting with the ground floor) regularly backfires because, based on a sophisticated ground floor, you “have to” push things around in the upper floor (especially as an attic floor with sloping ceilings) and “trick” with knee wall heights and dormers so that it fits.
Anyone who doesn’t believe it will regularly see it: typical hallmarks are door hinges pressed against the wall without wardrobe depth, awkwardly positioned chimney shafts, stair head height captain’s gables, bathroom dwarf dormers, etc.
Anyone who (re)cognizes these characters at least finds consolation in the designs of other lay planners, knowing they struggle with the same pitfalls. Incredible, but as usual: the sword for the Gordian knot is indeed to develop the floors following gravity.
As proof for skeptics, I can gladly offer a concrete example: at SupaCriz you can nicely see how a modified drawer-design basement for a garden exit first crosswise opposes itself at the ground floor, and the pain extends all the way to the attic staircase.