I would absolutely not trust an LLM to teach me anything alone. I've had it introduce ideas I hadn't heard about which I looked up from actual sources to confirm it was a valid solution. Daily usage has shown it will happily lead you down the wrong path and usually the only way to know that it is the wrong path, is if you already knew what the solution should be.

LLMs MAY be a version of office hours or asking the TA, if you only have the book and no actual teacher. I have seen nothing that convinces me they are anything more than the latest version of the hammer in our toolbox. Not every problem is a nail.