I have a fully up-to-date Arch Linux system running GNOME 3.26.1 on it and I have found that, although this seems to work with all of the other sections in the settings, if one searches for "about" in the AO search and clicks on the "About" search result which promises that section from the Settings app, all that happens is it launches the app and you end up in the "Wi-fi" section. If you already have the Settings app open then it just stays on whatever section it is already on.

It only seems to be the "About" section though which is affected as searching for all the other things and clicking on the associated item in the search results launches the Settings app and takes you immediately to the relevant section. I assume that this issue is either with the configuration or how gnome-shell has things hard-coded rather than an actual issue in the Settings app? Not quite sure how the backend works.