I've found LLMs helpful for figuring out what I don't know, then I can go and look up how those things work, again together with an LLM.
But in the past, once I got to the point where I know I could maybe do something about it, but not exactly what, and I don't know any of the domain words used, you got pretty much stuck unless you asked other people, either locally or on the internet.
At least now I can explore what I don't know, and decide if it's relevant or not. It's really helpful when diving into new topics, because it gives you a starting point.
I would never send something to a real human that a LLM composed without me, I still want to write and decide everything 100% myself, but I use more LLMs as a powerful search engine where you can put synonyms or questions and get somewhat fine answers from it.