Everybody agrees the documentation should be better. Far fewer people have sat down and written a page. This session is for the second group.
The structure is already there. guide.joomla.org is organised along Diátaxis: explanations, tutorials, how-to guides and references. Nobody needs to invent a table of contents this weekend.
What is missing is pages. We go through the guide, find the gaps and the parts that have quietly gone out of date, and then we write. Not plan to write. Write.
You do not need to know where your page belongs. The Documentation Team sorts that out afterwards. Bring a laptop and a topic you know well enough to explain to someone else.