tux@ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 21.10
Release: 21.10
Codename: impish
tux@ubuntu:~$ mount | grep zfs
rpool/ROOT/ubuntu_2kr8m0 on / type zfs (rw,relatime,xattr,posixacl)
rpool/USERDATA/tux_2g3jg1 on /home/tux type zfs (rw,relatime,xattr,posixacl)
rpool/USERDATA/root_2g3jg1 on /root type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/usr/local on /usr/local type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/games on /var/games type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/log on /var/log type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/lib on /var/lib type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/mail on /var/mail type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/snap on /var/snap type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/srv on /srv type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/www on /var/www type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/spool on /var/spool type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/lib/dpkg on /var/lib/dpkg type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/lib/NetworkManager on /var/lib/NetworkManager type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/lib/apt on /var/lib/apt type zfs (rw,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_2kr8m0/var/lib/AccountsService on /var/lib/AccountsService type zfs (rw,relatime,xattr,posixacl)
bpool/BOOT/ubuntu_2kr8m0 on /boot type zfs (rw,nodev,relatime,xattr,posixacl)