If you're using an LLM to write code, you need to treat the output exactly the same as a random answer from Stack Overflow, or some shit an intern wrote.
It might be great! It might miss corner cases! It might completely misunderstand the codebase and use APIs incorrectly, or just not compile, or solve the wrong problem!
If you're employed as a software developer, it's *your* responsibility to proofread anything you didn't write yourself (and also, to be fair, the stuff you did actually write)