2 decades ago, so well before any LLMs, our CEO did that with a couple of huge code changes: he hacked together a few things, and threw it over the wall to us (10K lines). I was happy I did not get assigned to deal with that mess, but getting that into production quality code took more than a month!

"But I did it in a few days, how can it take so long for you guys?" was not received well by the team.

Sure, every case is its own, and maybe here it made sense if the fix was small and testing for it was simple. Personally (also in a director-level role today), I'd rather lead by example and do the full story, including testing, and especially writing automated tests (with LLM's help or not), especially if it is small (I actually did that to fix misuse of mutexes ~12 months ago in one of our platform libraries, when everybody else was stuck when our multi-threaded code behaved as single-threaded code).

Even so, I prefer to sit with them and loudly ask questions that I'd be asking myself on the path to a fix: let them learn how I get to a solution is even more valuable, IMO.