Stadia’s closure is sure to have fallout for developers on the platform like Splash Damage, whose Stadia-exculsive game Outcasters will cease to exist. While this is a massive blow for Stadia-exclusive games, Stadia subscribers can at least count on being able to transfer their saves through a few different methods, including the one that CD Projekt Red has laid out for Cyberpunk 2077.
Source: https://www.distractify.com/p/how-to-transfer-cyberpunk-2077-saves-from-stadia