Ubuntu 23.04 Desktop's New Installer Set To Ship Without OpenZFS Install Support

It was just four years ago in Ubuntu 19.10 that Ubuntu's desktop installer added OpenZFS support for carrying out root file-system installations atop this ZFS file-system. Since then the Canonical/Ubuntu interest has waned. Ahead of the Ubuntu 23.04 release this week, I tried out the Ubuntu Lunar Lobster daily snapshot this weekend to find the OpenZFS install support with Ubuntu's new desktop installer to still be missing...