Low to no effort. I also made some "games" via Gemini or ChatGPT, even Claude. I know the limits if you don't pay the highest tier and split coding into parts. You have to have a concept and know how to code to even get the prompt right. Sure you can say: Make me a game that does this or that. But you'll never be able to fix it, if you don't even know what line of code is bad. So... now you have the answer.
That answer is pretty contradictory, don't you think?
"Low to no effort [...] that requires to have a concept and know how to code to even get [it] right".
This very contradiction was precisely the reason for my comment. They're putting in effort, as per your own statements, for something that is freely available.
They surely could put in more effort... but why? Do you go to work on a unicycle cause the car is too low effort? And is what he's doing in any way different from copy/pasting the code in Stackoverflow comments?