lsb_release -a says that I have Ubuntu 18.04.6 LTS.
uname -r says 4.15.0-206-generic. So here I found out that my distro has GA Kernel. Also there I found a command that add HVE to my 18.04.
I’ve executed sudo apt-get install --install-recommends linux-generic-hwe-18.04 , rebooted system and now uname -r gives me 5.4.0-144-generic. Updated with apt update. But when I run apt install zfsutils-linux it says zfsutils-linux is already the newest version (0.7.5-1ubuntu16.12). So zfs still old(