Humans are wrong all the time and confidently so. And it’s an apples and oranges competition anyway, as ChatGPT has to cover essentially all human knowledge, while a single human only knows a tiny subset of it. Nobody expects a human to know everything ChatGPT knows in the first place. A human put into ChatGPTs place would not perform well at all.
Humans make the mistake that they overestimate their own capabilities because they can find mistakes the AI makes, when they themselves wouldn’t be able to perform any better, at best they’d make different mistakes.