This popup was recently introduced in PR-2174.
I don't know exactly why, but voyager prompting me that I'm about to lose my progress was sort of strange to me in the context of scrolling on lemmy.
I understand why someone wants such a feature, but IMO this should be turned off by default and available as an option.
Thanks. It's there and its enabled but it doesn't do a darn thing. :(
It works only on the "back" event from android navigation, not the "back error" on top of the screen.