#OpenZFS now has much more detailed information about which varieties of Linux are supported.
tl;dr: all kernel.org "longterm" series, all RHEL active & maintenance series (including clones), and Ubuntu LTS.
(No actual change in practice, just trying to write it down a bit more clearly).
https://github.com/openzfs/zfs/?tab=readme-ov-file#supported-kernels-and-distributions