Different tools for different jobs; use ZFS for your data store and ext4 for your primary drive.

yes indeed, zfs for my nas basically

vermaden's contributions in making FreeBSD accessible to others is invaluable, as a Google search regarding some aspect of FreeBSD often includes results referencing his blog.

Wayland on FreeBSD does work; combining it with KDE Plasma is quite usable.

FreeBSD is great.