I found other posts that suggest making the help center easier to find but they're quite different. For example, this one and this one are discussing the full version. This one is quite old and was asking for optimizing the help center for the mobile version.
I rarely use the mobile version (I mostly use the mobile app when I'm on mobile) but today I opened the home page of a site on the network (which I hadn't used before) and immediately started looking for its help center; I spent over a minute trying to find it. Let's take SuperUser as an example for demonstration purposes*:
I looked for it on the top banner(s) but couldn't find it, opened the menu and looked there and still couldn't find it there:
Checked if there's another menu on the right and didn't find any. I then had to scroll down all the way to the bottom of the page to look for it there. I did find it there (which is not a good place if it's the only one) but to make matters worse, it's even covered by that notice regarding cookies and TOS so it can easily be missed:
I honestly felt frustrated!
So, my question/suggestion is why not make it easier to find the help center on the mobile versions by adding it somewhere on the top (or at least in the menu)? We want to encourage users to go through the help center before posting a question/answer, don't we?
* I would've used Stack Overflow instead but the new home page is meh! 🙄