Have you noticed that Microsoft, Google and Apple software are still just as full of bugs as they were 5 years ago, if not more - even though all of them are all-in on AI, pedal to the metal? If LLMs would actually understand the code with human-like intelligence, then it would be a few minutes only to go through all open bug tickets, evaluate them, and to fix all the valid bugs, and reply to the invalid reports.

But to this day the best we have are the (unfortunately useless) volunteer replies on the relevant help forums. (And hundreds of unanswered github bugs per project)