If you say so then OK, I am not going to claim you are imagining it. But some proof would be nice.
I have quickly given up on experimenting with LLMs because they turned out to be net negative for my work -- proof-reading code is slower than writing it.
But if you have good examples then I'll check them out. I am open to the possibility that LLMs are getting better at iterating on code. I'd welcome it. It's just that I haven't seen it yet and I am not going to go out of my way to re-vet several LLMs for the... 4th time it would be, I think.