For example person who just said "spot" 10x when asked what to do at a green light usually says, "Stop!" Likewise a person who has just spelled "silk", "S-I-L-K", when asked what cows drink usually says, "milk".
The behavior of LLMs like ChatGPT are very similar to what is observed from the https://en.wikipedia.org/wiki/Left-brain_interpreter in humans. Complete with immediate facile explanations that hallucinate facts not in evidence. We do better than ChatGPT on this in large part because other parts of our brain supply immediate fact checks for a lot of the obvious mistakes. Similarly ChatGPT when combined with tools and patterns of when to check them also improves dramatically in the quality of its output.
Therefore I agree that ChatGPT is NOT AGI. But we may be far closer than you think to having a bunch of components which, when wired together right, DO act like something that reasonably should be called AGI. Whether it is becomes a definitions game. And I foresee a period of apparent infinite regress of changing definitions for people to justify that we don't have AGI, until we're faced in finite time with what has become clearly a superhuman intelligence.