The vertical scroll position of the Categories view is lost when a user enters a topic and then hits the back button of the browser. In topic list views it works as expected.
The use case is same for Categories and the Latest.
User scrolls downwards, skimming through the Topic headlines. So it may be a different page, but because it does have Topic headline links it serves partially the same purpose. Now the UX is incoherent.
This UX is also broken in the new view (which I do not use on my instances). For the new view this is even more relevant, as it shows a long list of topics.