That's gonna be contemporary Rare as a developer; Sea of Thieves is just a defining social game of the generation. And I gotta give a nod to Rare's history of IP and the potential still there.
I hope finding partners to develop Rare's old IP, like Banjo, is part of Microsoft's current spending spree. Bethesda really rounds out XGS for much of the demographic, but it'd be quite some sight to have Rare's old IP firing off too within the next years. Battletoads 2020 was hopefully just the appetizer of a new push. A Mascot Originals corner of Game Pass would be something, with Razputin, the bear and the bird and many old and new faces.