I wrote up a multi-paragraph review for a book last week on a desktop browser and my machine restarted. All the checkboxes and dropdowns for the review got cached, but the textbox did not 😭 I would love it for reviews in particular if it automagically saved my progress so that the next time I tapped "add review" it would be sitting there waiting for me. Even a manual mechanism would be helpful though.

For journal entries, I have been listening to a complicated audiobook and have been taking notes as I go, but I've been using an external note app so that I don't lose my updates. That's another place where I would love either an auto-save or a manual "save as draft" to avoid losing progress.