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It's certainly helpful when you want to try out something new.
For example I recently wanted to make a Firefox AddOn, which is something I hadn't done before.
So I asked OpenAI how to do it and it talked me through it step by step.Basically it allowed me to google less, because I could just ask ChatGPT, as it was faster.
Some info is outdated or wrong, so you still have to know what you are doing and still have to use Google.Also, I wanted it to help me get some data from the DOM, but that was a rather difficult job for OpenAI, it never "understood" what I wanted and just gave me code that didn't do what it was supposed to do, and even after explaining the problem with the code and telling it what I want, it wouldn't understand the problem and just give me other bad code that changed nothing about the problem.
So it's important to understand, that this is just one more source of information/help you have as a dev. It is not a standalone solution that can do your work for you. It merely can help you. The same way as googling, stackoverflow or reading the documentation helps you