I am running a Ryzen 5700x with 48GB of RAM. I use it as my always on desktop/gaming computer/server running Gentoo Linux. The few services I use are:

Pihole NFS (File sharing between my *nix computers) Netatalk (AFP File sharing between my PowerPC macs) Samba (Media sharing to an old laptop running LibreElec)

It's not a lot but it makes everything so much easier.

CMUS as a music player. Clean interface, lightning fast and plays anything. I use it daily.

I would recommend starting with FreeBSD. They have a handbook on their website that explains everything you would need to know to get set up and get an idea about how everything works. You could kinda compare it to the Arch wiki.

A vast majority of things will be very familiar to you as a linux user and the repos/ports have almost anything you could need. A big difference is going to be the init system. It is more like Open-RC and runit compared to SystemD. It is based on scripts and very easy to use when you get the hang of it.

The most obvious drawback is the lack of support for 802.11ac (it is in the works and you can use something called wifibox to use linux wifi drivers).

I use Gentoo on my desktop/file server. I like the freedom to set up things EXACTLY how I want them. Compile times are no worry with a Ryzen 5700x and I do major updates overnight.

I use FreeBSD on my laptop. It is super stable, resource efficient and soooo much more neat and organized than Linux. Core software does not change every other year and everything feels right at home. I highly recommended giving it a shot if you haven't already.