Hello
That is actually a good question. We have one developer who has made one single stack that can do everything needed to design a great website. It is called Layouts 2 and is made by 1littledesigner. RapidWeaver Stacks by 1LD | Professional & Free, Responsive & Modern
I am sure in a decade, all this kind of work will be taken over by Artificial Intelligence. Provided of course that politics have not extinguished all life on this planet.
Kind Regards
Kent