For me is not so. It makes me way faster in languages that I don't know, but makes me slower on the ones I know because a lot of times, it creates code that will fail eventually.
Then I need to expend extra time following everything it did so I can "fix" the problem.
My daily experience suggests that this happens primarily when the developer isn't as good as they assume that they are at expressing the ideas in their head into a structure that the LLM can run with. That's not intended to be a jab, just an opportunity for reflection.
But the moment I got the idea in my head, is the moment I got the code for it. The time spent is moslty checking the library semantics, or if there’s not some function already written for a specific bit. There’s also checking if you’re not violating some contract somewhere.
A lot of people have the try and see if it works approach. That can be insanely wasteful in any moderately complex system. The scientist way is to have a model that reduce the system to a few parameters. Then you’ll see that a lot of libraries are mostly surface works and slighlty modified version of the same thing.
Then I need to expend extra time following everything it did so I can "fix" the problem.