> The membrane will die within 2-6 years.
I still wear a goretex rain jacket and rain pants from the 90s, they work terrific. The membranes are fine.
> You will have to reapply PFA constantly.
Since pfa has been banned for non-commercial use (I think?) I currently use nikwax, which is a fluoride-free water repellant.
> On the other side wax is used since decades and it works and you can just reapply it by rubbing it into the cloth and ironing.
Wax is not breathable and will make you drown in your own sweat after a few hours of spending time in it.