EXCITING STUFF! Thanks to mad_dog_bravo responding to my request, this information was so juicy and helpful, i made a video .. This will show you how to access and download your Stadia Account data, which includes all your game screenshots, video clips, data files which contains interesting achievement info, and game stats for various games you play on Stadia, as well as GAME SAVE files, if you want to load your save file onto your pc copy or something [assuming its compatible of course] https://www.youtube.com/watch?v=GIigFoxrf4I
sorry, wrong link was posted, fixed
You might want to add the direct link here for easier access.