https://en.wikiversity.org/wiki/School:Computer_Science
Which leads to "Core Courses" and "Full Course Listing".
It also works if on the main page, the middle of the top box lists subject areas, you can click "Technology" which has a subcategory "Computing" which lists "Computer science".
It also works if you click on "Schools" in the main page, which lists "School:Computer Science".
I agree it should maybe be more primary how to access the subject hierarchy. But it is there in multiple ways.
And a substantial amount of the material that is there is bizarre content that's unlikely to be useful to teachers or researchers -- for example, the site hosts "courses" for topics such as "Dominant group", "Intentional Evolution", "Finding Courage", and "ACR" ("Action + Circumstances → Reaction").
Without pointing any fingers, I get the feeling that a substantial amount of the content on the site is the work of a couple of users treating the site as their personal blog, rather than an attempt to build content as a community. There's very little visible collaboration.
Doesn’t seem like a structured set of data that you could actually learn from as you would do on a university