If you use one of those platforms PS4, PS5, Switch, and Vita to play the Stardew Valley game then you must have a common question is stardew valley crossplay? No, it is not a cross-platform play game so this means players who are using platforms like PS4, PS5, Switch, and Vita can not play with each other in the same match.
Information source – https://techquerry.com/is-stardew-valley-cross-platform/