What's this I always hear about ENTPs never studying and still getting straight A's?

Have none of yall had classes where some of the material had to basically be rote memorized? Like history classes and lit classes (I count skimming chatgpt summaries as studying)?

Also what about homework and projects? Most classes have that as a proportion of the grade and I count just doing those as studying too. I also count paying attention in class as studying.

So what's with all the bragging about getting perfect grades without ever studying?

I'm talking mainly about mandatory schooling, since in uni you can choose your area of study.