For English writing I remember a lot of words and phrases that ChatGPT taught me.

For scripting, of course I don't remember the details it provided. I don't remember the details I wrote yesterday either. But at least I roughly remember things like "There is a simple way to visualize any f(x) with about 10~20 lines of numpy and matplotlib. It's not a daunting task at all". I believe these pieces of information improve my decision making a little bit.

I don't think ChatGPT improved the deeper programming skill of mine, like data struct/algorithm/architecture. But I see no reason why it would make me worse in this aspect either.

Not OP, but for me the higher level decisions stick, but not the bitty gritty detail. And I'm ok with that, I care less about the implementation detail and more about the higher level problem solving, and using these LLMs I feel make me better at that.