Trolling? Do you believe every gamer has even played most of the best xbox one/ps4 gen titles? Some are playing Stars Wars Jedi: Fallen Order for the first time, a bunch of the Yakuza games are on Game Pass, Scarlet Nexus is dropping soon, Psychonauts 2 looks fantastic and drops in August, Halo Infinite comes this year, Forza Horizon 5 comes this year, game pass owners got MLB The Show added to the service, Yakuza Like A Dragon is gamepass bound, a bunch of Bethesda titles have been dropped on there that many have never played, or people want to revisit in light of recent Bethesda news, such as Prey, Fallout 4, Skyrim etc., Watch Dogs Legion just got a 60fps update, many still haven't played AC: Valhalla, Doom next gen upgrade is coming, Elder Scrolls Online is getting next gen enhanced (and Game Pass owners got that free also). Any and all DLC for any Bethesda games are an automatic free addition to Game Pass going forward, and I'm leaving out a shit ton of other games.
Saying there isn't much to play for Series X is just plain laughable at this stage. Gamepass makes it so that you don't even know where the hell to begin on what game to play. The choice is insane.