and they may or may not "listen", they are non-deterministic and have no formal means or requirements to adhere to anything you write. You know this because they violate your rules all the time in your own experience
And now we have LLMs that review LLM generated code so it's easy to verify quality standards.
There are certain things they do, or don't do, that a human typically wouldn't, putting absolutes and anecdotes aside
In 25 years I've never worked in a codebase where this wasn't true.
It's far to nuanced for generalities tbt