They don't even know how to write a prompt, or in some cases even what "writing a prompt" means. They just paste the assignment in as a prompt and copy the output.
They then feed that as input to some app that detects chatgpt papers and change the wording until it flows through undetected.
One student told me that, for good measure, she runs it twice and picks and chooses sentences from each-- this apparently is a speedup to beating the ai paper detector. There are probably other arbitrarily-chosen patterns.
I've never heard of any of these students using it in any way other than holistic generation of the end product for an assignment. Most of them seem overconfident that they could write papers of similar quality if they ever tried. But so far, according to all of them, they have not.