(Anecdote) Best job I ever had, I walked in and they were like "yeah, we don't have any training or anything like that", but we've got a fully setup lab and a rotating library of literature. <My Boss> "Yeah I'm not going to be around, but here are the office keys" don't blow up the company pretty much.
To be honest, I do find most manuals (man pages) horrible to quickly get information how to do something and here LLMs do shine for me (as long as they don't mix up version numbers).
For man pages, you have to already know what you wants to do and just want information on how exactly to do it. They're not for learning about the domain. You don't read the find manual to learn the basics of filesystems.