When working on the website redesign an issue we identified was a single "documentation" entry point leading to a huge bullet list covering up a broad range of situations. We also thought learning how to use funkwhale and developper resources were two unrelated things, and we figured out exposing documentation topics directly accross the website would help providing people with the information relevant to their situation.
So like you we went with tiles for introducing the documentation topics, but we chose to integra the them directly inside the website, where we would have a "Help" page and a "Contribute" page. This is how things are going so far.
I didn't went too deep into reviewing the documentation yet, still I find the changes most welcome! The new "user documentation" hierarchy is much simpler, and the sidebar now gives a clean overview of all funkwhale features. I believe it is a much more effective way to give access to the content, because I find the huge bullet lists of the previous user documentation overwhelming. This is great!