In the current state you can go from Browse to View by pressing Return (Enter key), and it's not configurable in Keyboard Shortcuts settings. But to go back to Browse you need a different hotkey, and setting Return there doesn't work. Would be nice to have the ability to toggle between modes with one hotkey, ideally configurable, but Return would be fine for me personally.
That was the commit which removed the Return key go back to browse mode: https://invent.kde.org/graphics/gwenview/-/commit/2c829f4ebdf4c281347d5afc011a709b4b0ed8bc In file app/viewmainpage.cpp, function ViewMainPage::slotEnterPressed() the following line was removed: emit goToBrowseModeRequested(); Removing such an essential workflow for just entering a zoom level is really a no go. Fix the zoom input box instead! None of the other input boxes like e.g. crop conflict with the return key.