Small anecdote:

When doing let's call it "mundane" coding, I am able to answer a big chunk of questions using ChatGPT only without having to use a search machine to "ask the internet". If you are experienced in the domain you can give useful hints to the LLM (e.g. you know which libraries to use, what's critical, etc.) and really get extremely useful answers. And I am not talking about common areas, but highly specialized ones.

I think that's pretty remarkable, as doing coding without Internet access is ... challenging to say the least.