Of course it didn’t help the heat in the room, the heat from the CPU still has to go somewhere. Better coolers aren’t for the room, they’re for the CPU. in fact a better cooler could make the room hotter because it is removing heat at a higher rate from the CPU and dumping it into the room

Yes, there’s some premade docker images you can use like https://hub.docker.com/r/dyonr/qbittorrentvpn/ to get started