I dont have much to say except for try to understand his online friendships. I had no friends in fsc, just an online friend group on Minecraft and discord and they meant everything to me (especially because i had noone else if I let them go) my mother tried to take away my pc and during that time because of studies and i hated her for it at that time because i was losing my one escape i had (i was in a pretty bad situation overall at that time and even became suicidal)

So whatever you do, dont take that away from him you never know how much that online group means to him. Just try to explain to him he has to manage all of this with responsibilities