The hardware support isn't all that bad, but FreeBSD is indeed pickier than Linux or Windows :-). Reasons why I like it include excellent documentation (light years ahead of anything in Linux land), ports & friends (things like Poudriere), and ZFS. I also like Capsicum but I don't use it much.

If that's relevant to you, it also doesn't use systemd (I don't mind it because I learned how to use it properly, but I'd certainly love a break from troubleshooting it...)

If

1) Your workstation is a desktop as opposed to a laptop,

2) You have an NVidia graphics card (or use your motherboard default graphics card), and

3) You do not need CUDA

then FreeBSD is pretty likely to work out of the box with your hardware.

The biggest practical advantage for me is that the source code to the entire OS is installed in /usr/src and is very easy to read, modify, learn from, and build/install. So if you need to know how some obscure OS tool works, instead of browsing weird forums all day you can just read the source.

BSDs have significantly better documentation and are far more consistent because the base system is developed with the kernel as part of a complete whole. Administering FreeBSD is quite refreshing by comparison to administering GNU/Linux.

Better zfs support out of the box would be big one for freebsd