Pretty much this. Even in topics I'm decently knowledgeable, I feel like the vibe from SO answers will be "just read the spec" or source code; so I usually was able to string other answers together.
With LLMs you can start with first principles, confirm basic knowledge (of course, it hallucinates but I find it's not that hard to verify things most of the time) or just get pointers where to dive deeper.
With LLMs you can start with first principles, confirm basic knowledge (of course, it hallucinates but I find it's not that hard to verify things most of the time) or just get pointers where to dive deeper.