Yes. I tried this maybe a year or so back, and came to much the same conclusion, and I say this as someone who's been running ZFS systems for over a decade now.

Yes. I tried this maybe a year or so back, and came to much the same conclusion, and I say this as someone who's been running ZFS systems for over a decade now. When it comes to actually booting from them, the potential for "fit and finish" issues with the distro (and grub...) is very significant. Proxmox works really well for me, you can basically treat it as a non-desktop Debian distro, with ZFS built-in, and a largish community of people who use it that way.