With months passing our PRO libraries become bigger, and we can only sort it by:
Title
Price
Last addition
Age
But since game that we can redeem are just sorted by those we just need to scroll the whole list to be sure that we redeemed everything available.
It could be nice to have a filter for the Stadia Pro game, were we can just have not redeemed games on top, or a new section with current game that we still need to redeem.