Personally, my main problem when learning new things is that, once an ecosystem has matured to a certain point, there's a baseline of knowledge that everyone inside that ecosystem has. In anything I read about it, this knowledge is assumed, and if I search for it, all the old articles that talk about it are either no longer available or just wrong, because that baseline knowledge gradually evolved as the tech matured, unnoticeably to the people inside the ecosystem.

This is an area where I find LLMs to be extremely valuable, as they often still contain that knowledge and can explain it to me in a way that makes sense.