Earlier quoted context omitted.
Within a sentence sure. And often arguments are familiar enough that even an essay I’ll know where it’s going. But we do occasionally have original ideas.
I don’t think we know what original really is to make a meaningful distinction between derivative work. With enough mixing and matching and a tiny bit of randomness, I bet a lot of original thoughts could be created.
These things are hard to quantify but ChatGPT writing does have a certain anodyne character, in my mind, when I read it. Then again, I can't quantify it, I could be biased by my foreknowledge of the writing's provenance, and even if I'm right, the world is full of situations where bland writing is suitable or even desired.