[RIMR]

That's because for the past couple of years models like ChatGPT's have been used to generate psueudo-educational blogspam, and you associate that with writing style with it now.

But generally, ChatGPT writes in a very literal direct style. When you write about science, it sounds like a scientific paper. When you write about other subjects, it sounds like a high school book report. When you write creatively, it sounds corny and contrived.

You can also adjust the writing style with example or proper descriptions of the writing style. As a basic example, asking it to "dudify" everything it says will make it sound cooler than a polar bear in ray-bans, man...