Woot offers OtterBox Thin Flex Series Case with Pixel Snap for Google Pixel 10 Pro Fold for $4.99 (orig. $32.99). Free shipping for Prime Members. 

Product Description:
Slip your foldable phone into an ultra-slim folding Google Pixel 10 Pro Fold case. Thin Flex Series snaps onto your phone in an instant and stays on to guard against drops, scratches and scrapes. Extra layering around the edges ensures a secure fit and added protection.