Only use jellyfin. Have a list of things want to update… but it works for now.
Yes that is a laptop usb cooler used as supplemental placebo cooling. Also a pc fan I have propped up against the hard drive feeding into the pi.
Can’t recall last time used the ps4 or switch. But they’re there
No but you don’t need a lot of horse power for just gigabit
you do if you want more than just a router