Suppose I play X hours on a trip when I have no internet access, and then when I have internet access I connect my Steam Deck and I would expect that if I played X hours on the trip, the hours would sync to my profile and add them to my game, but it doesn’t seem to be like that, am I doing something wrong or is this a normal Steam behavior that can’t be changed?
Most people are saying it, because steam simply doesn’t sync offline played playing time.
When playing offline, it temporarily tracks the offline playtime locals in your library. Butnomce you connect to the servers, it will sync up the playtime with what has been stored on valves servers, erasing any locally played game time.