I've installed zfs-dkms and it did the work. I can confirm system works as expected and performance is higher now.
# uname -a Linux nas139 5.15.0-33-generic #34-Ubuntu SMP Wed May 18 13:34:26 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
# zfs --version zfs-2.1.4-0ubuntu0.1 zfs-kmod-2.1.4-0ubuntu0.1
I've installed zfs-dkms and it did the work. I can confirm system works as expected and performance is higher now.
# uname -a
Linux nas139 5.15.0-33-generic #34-Ubuntu SMP Wed May 18 13:34:26 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
# zfs --version 4-0ubuntu0. 1 2.1.4-0ubuntu0. 1
zfs-2.1.
zfs-kmod-