Playing Balatro on my Steam Deck works as intended, however, any play I do on my PC seems not to be uploaded to the Steam Cloud. Playing on PC correctly seems to download my Steam Cloud save but does not save locally nor to the cloud.
I had similar behavior during the demo/playtest builds. It is possibly in part due to the fact that my PC's AppData is simlinked to be on a different drive. No other game I've played has this issue though.