Interesting. This has not been my experience. I have not regularly worked in Smalltalk for 12+ years, other than the occasional download and show some young programmer how cool the "petri dish of objects" was/is.
For the last many years, I've been working in C, Swift, Kotlin, Python, and Elixir. In no case, have I felt that there was a step difference between the communities. I'm doing a lot of Elixir right now, which supposedly has "the docs are great". And yet, I often can't find the answer I need to figure something out. Sure there's some inscrutible parts of Smalltalk code bases, but my point is, journeying aboard in these other lands (I do quite a bit of Python too), hasn't made me feel like "oh wow, here's the documentation I could never find." Your mileage obviously varies, I respect that. Just wasn't my experience.