Gaming addiction or just being a normal kid gamer?

My 12yo wants to play Fortnite like 5+ hours a day. He says all the kids at school play it and they have group chats about it. I limited him to 2 hours on weekends and he absolutely lost it. Started yelling that I'm ruining his life. My wife thinks I should let him have more freedom but I'm worried about his eyes, his sleep, his social skills. How much is too much? Anyone else dealing with this?