Absolutely every layer of abstraction reduces boilerplate, but it's not as if it's entirely gone. I should say, I use boilerplate as a euphemism for 'trivial code'. For example recreating backed request models in the frontend, a simple "create db record" service function, etc.

I mostly use vuejs at the front and fastapi for the backed, and unless I'm missing something big, there is still plenty of 'trivial code' that I find is done a bit faster.

bug creation rates of AI trival code vs my own trivial code has not been evaluated