You do not need FreeBSD jails if you have Linux containers; even so, jails are better for most sysop tasks. Likewise I much prefer KVM to Bhyve. I note SmartOS

You do not need FreeBSD jails if you have Linux containers; even so, jails are better for most sysop tasks. Likewise I much prefer KVM to Bhyve. I note SmartOS supports both KVM and Bhyve.