It should already work with the top of the screen unless they’re talking about somewhere different. I think it may just be an iPhone thing already. Go in Nostur or Damus or Safari for that matter, and scroll down the page a few scrolls. Then tap the very top of your screen in the area where the notch/earpiece/camera are and it should scroll to the top.
How exactly should it work? I want to implement all these “hidden” navigation improvements. The last one was navigating back and to top with the bottom tab buttons, explained to me by nostr:npub1lrnvvs6z78s9yjqxxr38uyqkmn34lsaxznnqgd877j4z2qej3j5s09qnw5 and nostr:npub14f6xcqnv8vmauty6wg0mlrs3qg6llwe4lxtzqqpdnlmqah47nxrq60qvty, I never knew this was possible and now I use it all the time.
Discussion
True. It works on iPad, too.
I never thought of tapping the icon bar for some reason on Nostur that is the “OS system” area (yellow in the pic). Was always trying within the app area (red) as it works on Twitter app.