I'm using my old Thinkpad T510 as a home server. It's been running for 7+ years already. I only need to dust the vents once in a while.
It has PiHole, Nextcloud, my humble little Netflix clone, and a few other things. If you use ffmpeg a lot, you ought to have more power than the RPi offers. I often SSH into it to use it as a SOCKS proxy in other countries.
It's a regular laptop fan, so it's inaudible unless ffmpeg is converting a movie. Then there's an audible hum, but it's no louder than the fridge's compressor.
It has PiHole, Nextcloud, my humble little Netflix clone, and a few other things. If you use ffmpeg a lot, you ought to have more power than the RPi offers. I often SSH into it to use it as a SOCKS proxy in other countries.