I've been arguing with NFL Game Pass support, and after 3 days they finally admit it's a problem. (You currently can't watch most games on Apple TV, across device generations) : r/appletv
Watch Live NFL Games with NFL Plus — Save Up To Nearly Half on an Annual Pass - TV Guide
NFL+ Live Games on mobile, NFL RedZone, NFL Network and More!
NFL+ Live Games on mobile, NFL RedZone, NFL Network and More!
Sports Archives - 9to5Mac
NFL+ Live Games on mobile, NFL RedZone, NFL Network and More!
Sports Archives - 9to5Mac
Review: NFL+ – Appleosophy
Apple TV Gains Updated NFL Channel With Game Pass Integration - MacRumors