That's not true at all. The play time just gets updated when you close the game. Sleep Mode doesn't count.Honestly, I feel like anyone with a playtime of 500hrs or more is probably just leaving the game running when the system is in sleep mode. I once did that with a game that I barely played at all. Left it on overnight, and the next time I looked at it, it was like "20 hours played". Nope. Lol.
Back to the topic, I played 520 hours already. This game is like a drug haha.