I have recently found this difficult. For me the obvious route was to go to the burger menu to find the Help option. “Help” did not exist on the menu, so I tried “FAQ”. That lead me, not to a FAQ, but a document “About the Society’s Comunity”. In section 3 of that, there was a link to the how-to guides, but it no longer works. The only route to find them seems to be Burger | Categories (12 more) | Scroll down | How to guides.
I note that a redesign is is the offing, but before then I think it should be made a lot easier to find help on the forum, ideally through “Help” on the burger menu.