Yes!
We're really pleased to have worked closely with Stadia's engineering team to integrate State Share Beta with Crayta. More information is available over on our blog post about the feature -
https://medium.com/unit2games/introducing-stadia-state-share-beta-with-crayta-b024575dc52
In addition we also now support Crowd Play Beta, allowing players to join their favourite streamers in-game: https://www.youtube.com/watch?v=VkQj7m5o6PY