If you’re afraid it might cause a problem, maybe you could try to say no one time (ideally at some time when you sense it’s not that important for your son, like not during a storm or after nightmares), just to see if that’s ok for him, or if that raises problems.
There are communities dedicated to music on Lemmy, though it won’t be personalized recommendations, you can still find pretty cool artists. I also share music with friends : you share them one music you like, they send back a music of their own. At some points, a friend of mine organized a Discord server to create 5-songs playlists on a theme each week, which we listened to and vote for our favorite each week. It was a very cool way of discovering new bands !
You can technically do this in Lethal Company, but since there’s no permanent way of communicating on long distances in game (you have to get items for this), it could be a bit frustrating at first. Maybe some mods enable it though.
I found Frieren to be quite slow, in a good way, but i think there are better options out there that i’m unaware of.
This website seems to indicate that you can either do it in the bios directly, or with traditional overclocking softwares like MSI’s Afterburner.
Though you specified you don’t want to take it apart, i’d recommand changing your thermal paste anyway to avoid damaging your cpu. Maybe you can bring your pc somewhere else if the place where it’s at is the problem. But anyway, that’s none of my business.