I personally find it very easy to use, but to each their own! Is there any forum software you prefer?

Discourse is impossible once it gets to a certain size. Four groups trying to have four different conversations on top of each other.

Having never used Discourse before, I don’t like that the default view is “Latest” and when you view “Categories” it only fits 1 at a time on screen for mobile, since it previews all the top posts still.

The MyBB instance Jellyfin has set up is much more user friendly if you’re trying to get help with a specific thing.
People don’t doom-scroll on forums like they do other social media, so I don’t see the need to see all the latest “Why doesn’t my Jellyfin work?” posts.