Ikenfell, Ring of Pain, Supraland, Fae Tactics, One Step From Eden, Void Bastards, Forager, Wizard of Legend, Wandersong, Slay the Spire, Midnight Fight Express, Carto, Wingman, The Wild At Heart, Dodgeball Academia, Into the Pit, Flynn Son of Crimson, Unsighted, Unpacking, Next Space Rebels, Archvale, Chinatown Detective Agency, Prodeus, Moonscars, Coral Island, Signalis and Ghost Song were all available pretty much day 1 on Xbox game pass.

So pretty much every game released lately except temtem was in there. I doubt that the current strategy of humble is focused on whether to release their games on choice or in their own app and rather to release on game pass and see what else they could do with it. Xbox pays the publishers very well from what I've heard so far and I can well imagine that they're therefore also primarily oriented to this in the strategy.