I re-post here the call for action due to a bug discovered in OpenZFS vs. 2.2.0 by the Gentoo team:
https://github.com/openzfs/zfs/releases/tag/zfs-2.2.1
Gentoo users have identified a block cloning bug (https://github.com/openzfs/zfs/issues/15526) that can result in data corruption in zfs-2.2.0. To workaround this, zfs-2.2.1 disables block cloning by default (see https://github.com/openzfs/zfs/pull/15529 and https://github.com/openzfs/zfs/commit/479dca51c66a731e637bd2d4f9bba01a05f9ac9f).
It gets recommended to update to vs. 2.2.1 ASAP.
BR
N.