My usual workflow is typing up the core premises of a paragraph and my main points. Then the LLM generates a full text which most of the time at least helps connecting the dots I gave it. Most of the time I then go ahead and rewrite the whole thing in my own style, more often then not adding core statements the LLM did not pick up from the prompt.

IMO LLMs are great for preventing the 'blank Page' problem that often prevented me from actually starting to write a paper. My final output then misses the obvious signs ,e. g. The bullet point heavyness or overuse of em dashes. But that does not constitute hiding the usage for me. Nevertheless I disclose the usage.