I think that one needs to ask 'What does a user with a problem want when they go to a forum?'
They are agitated enough by the problem and may have bald patches or no hair at all.
I have been on many forums where it is impossible to find the right section without lots of searching through, only to find no answer and give up and go back to pulling out the remaining strands.
So I think clear signposting on the landing page is important - rather like what is now fast disappearing - a department store. Gentlemen’s floor One - they only need a small section of one floor for all their needs it seems. Ladies: Floor Two lingerie, Floor Three Shoes etc.
I like Ali's suggestion, but agree with Alfred about the General and Cross Product 'floor' - why bother having three distinct floors if all the buckets and mops are mixed with the beds and sofa's, shoes, make-up and perfume, cat litter and dog treats on the Ground Floor, or even the Basement.
Affinity Publisher, for example. could have sections, perhaps:
AF PUB-
|_Mac OS
|_Ipad
|_Windows
and the same format for the other applications, so with a couple of clicks one would find oneself on the right floor with a list of the current queries, a quick scroll or search (limited to that floor only) would soon have you reading an answer, or in the absence of such, formulating ones own cry for help.
That's my sixpence worth, or should that be 'tanners worth', anyway.
A small edit.
Alfred is too much of a gentleman to mention it I am sure, so to avoid all the throat-clearing, tie-straightening and shoe-shuffling
and general prevaricating and beating-about-the-bush, may I suggest a discreet 'Donate' button to help with the defraying of costs that are likely to accrue with this additional rise in traffic and administration? I know, I know, but it had to be broached, forget I mentioned it, but there it is.