I find that using a gooseneck puts strain on my wrists !
Really?
It's lighter in weight so can't really work that one out.
I found a swivel put strain in my elbows and wrists, but not a carbon fibre gooseneck.
Have not used a gooseneck but can see when it would be harder on the wrists, cleaning a patio door would be one
example, the further the brush sits from the pole the heavier it gets.
In an up and down motion there wont be much difference unless you rinse of the glass but if your cleaning with the
brush in a vertical or angled position then you wont have as good a balance as you would with a resi neck.