I have no idea about publishing or book writing or anything, so please enlighten me, but how much of that is plagiarism and how much of that is what would be ca

I have no idea about publishing or book writing or anything, so please enlighten me, but how much of that is plagiarism and how much of that is what would be called "fair use" in other domains? The post only refers to excerpts of long-winded descriptions of stuff, not to large plots or entire paragraphs plagiarized. Is that very different from asking ChatGPT to generate a thorough description of a situation and using this? Would that be plagiarism too?