After the whole folder? Chain the parent folder key with &zip= and the server packs every nested object into a single compressed stream. The archive preserves relative paths, holds modified timestamps, and drops in the browser within 30 ms of the HEAD response. No API key required.
Second reminder 24 h
Export the Reel frame stack as a five-panel Story with the "Add Yours" sticker: "Share your prize reveal". Community Stories kicked off this way deliver recent signals for seven consecutive days, keeping the parent Reel in recency sort.
Remove and upload again if impressions fall below your follower base after three hours