And play time too, I played a game for about 10 hours on the week I bought it but steam reported 600hrs.
Fortunately (or unfortunately) it corrected itself after playing on PC for a few mins, still if it hadn't, silly crab dark souls would have been my 3rd most played steam game ever
I saw that when playing a game, it counted the time since it was opened while playing. But always saw it correct itself to actual time running withing a few seconds/minutes of closing the game on the deck.