I'm not quite sure how I did this, but I seem to have opened up the itch.io website inside of the app, which has convinced the app that it is a normal internet browser and it tells me that I should download the app to access the app's features, with such convenient things as "tabs" and "page history" which are no longer available inside the app as a result.
I think that I accidentally clicked and dragged one of the in-app links and that overwrote the app somehow? I haven't uninstalled and reinstalled yet because I wanted to explore how weird this glitch could get. Simply closing and opening the app does *not* fix the problem, however.