I think that, barring some radical replacement of HTML/CSS/JS, code generators of any type will never be useful for anything but very simple websites (although, granted, many businesses are perfectly well served by a very simple site).
Why?
Because HTML is fundamentally semantic, and there is no computational solution that can make a drag-and-drop-you-don’t-need-code interface produce correct semantics. It’s not a solvable problem in the general case. The decision of what is an article, main, header, etc. or what aria-attributes are needed, etc. is not something a drag-and-drop interface can figure out. Either a) You have to use complected menus to input semantic details and you would be better off coding by hand, or b) the code will be garbage that will probably get you sued for 508 or ADA violations (or equivalent for your country; I’ve been employed full-time fixing problem b for the last six months).
As long as HTML remains a semantic document standard, code generators will never be more than a niche tool.
And if, somehow, AI reaches a point where I’m wrong, we’ve got much bigger employment problems than losing front-end work as a field.
So don’t sweat it.