Agreed on the larger picture. Oracle ZFS is calcified ZFS. Their last stable release it looks like was in January of 2023.

OpenZFS released 2.3.1 a few weeks ago: https://github.com/openzfs/zfs/releases It has direct support for FreeBSD and Linux.

macOS, Windows and other ports work great, but are not (yet) upstream: https://openzfs.org/wiki/Distributions