Good news thank you to Trzarector and also thank you to Dylan Cuthbert for responding and it looks like Q-Games game which they demoed at last years GDC will be ready soon. Details are sparse on the game details but the game was made for Stadia from the ground up.
You can watch the presentation about the game here.
This game will be taking advantage of the ground up as it will be featuring State Share. With the brief description above looks really exciting to see where this brings us and could start the first viral Stadia game because of this feature.