Yes, even GPT3.5 is better. I am in uni, and LLMs are probably the best teachers I have had the experience to learn from(and I have had some great teachers and professors). They work even better if you feed them the content of a book/manual/documentation as a reference.

They do suck at solving problems correctly, however if you give them an incorrect solution and ask them to spot mistakes, or just ask for a general method to do a problem, it works out.

However, they might not yet compare to the best of humans. The best SO answers probably represent 0.01% of the answers, which is a high bar. I am certain very amazing teachers and professors exist out there in the world whom LLMs can't beat yet but the average can't compete.