This sort of announcement has made me very happy I left the software world. I still code as part of my job, but it's not my main part and luckily I don't have to use LLMs are part of my job. I still code 100% by hand.
In some ways, although I detest AI, it has clarified the sort of people and organizations I want to associate with. Any latent characteristics that I abhor have been made obvious with the existence of AI and of course, I would want nothing to do with Jane Street.