@davew This is true. But.
I think that we use "plagiarism" for copying ideas and style from somewhere else, especially without attribution.
It's considered ethically bad for students and journalists, even if it's technically not copyright infringement.
I don't think we have enough experience with LLMs to have best practices for re-using ideas and style. For me, when I use ChatGPT, re-presenting facts a feature, not a bug.