My saved vocabulary is getting useful, but exports become noisy fast. If I only want B1 words from one project, I should not have to clean that list by hand after export.
A practical export screen would let me filter by CEFR band, project, save date, tag, and whether the item came from a phrase or a single-word click. This matters most for people who actually review outside Butterfluent too.
The best version also shows the count before export so I know whether I am about to create a focused deck or another giant pile of cards I will never finish.