Well… this might be a bit “niche” but I think a way to hide shows not available in services (or until you add them in your collection) in the “Up Next” section would be cool.
I know there’s a way to hide shows manually but it’s not really convenient to me because once you hide it it’s hidden forever… In France we often have to wait a long time for shows to appear on Disney+ or Prime Video so that will be a good way to free up some space.