Unless you are missed the news. Bug found in OpenZFS causing data corruption, FreeBSD, Linux and illumos are all affected.
Some good news from bug tracker on OpenZFS
OpenZFS 2.2.2 and 2.1.14 released with fix in place. If you don’t get your OpenZFS direct from here, point your vendor at it.
Patch your systems!!
But my filesystem has RAID and checksums and I use ECC memory, I don’t need backups /s