As far as I know the number of help center pages available to edit by moderators is very limited: What parts of the help center can site moderators edit?
Moreover, I (as a moderator of ruSO) can't confirm that the answer for the question just mentioned is still correct.
I found some questions like this Allow moderators to edit sections of privilege help center pages that asked for ability to edit more pages.
But I'm curious in general things, what's the reason behind that? Why so strict restrictions are needed that prevents edit of help pages by local site's moderators?
Probably it's just a way to make help pages consistent across all SE sites. Unfortunately this doesn't work for non-English sites, because as the first step all help pages on such sites should be translated.
Could we just made all help pages editable by site moderators, possibly with approval from another mods like it done for revision redaction?