I mean, no one is asking for artistic writing, just not some obvious AI slop. The fact that we all can now easily determine that some text has been written / edited by AI is already an issue. No amount of prompting can help.

Yeah but thats not what I am saying. I am saying its default writing style is for communicating with the user, not producing content/text hence it has that distinctive style we all recognise. If you want AI writing thats not slop, there are tools that are trying to do that but the default LLM writing style is unlikely to change imo.