Do you use ChatGPT for self-directed learning and if so how?

If you're using ChatGPT to learn some reference materials by yourself, or even just broad topics like quantum mechanics, how do you usually do it?

If you're also learning something that's not self-directed, eg. you're studying for an exam with clear expectations, how do you use ChatGPT differently vs. when you use it for own research?

I've noticed a bunch of my friends use ChatGPT very differently for exams vs for casual research. Like it's really useful for exams, but for casual research they never remember anything at all.