no shared cloud when playing on different devices.

As others have stated, due to the size of the data in a single save, plus the number of files contained in a save, makes cloud sharing untenable.

Take a search on the forum before posting a thread, and you will find that this has been brought up numerous times.
https://steamcommunity.com/app/251570/discussions/search/?q=%22Cloud+Save%22&gidforum=648814395754543790&include_deleted=true&sort=time