Yes, Ubuntu 20.04 and 22.04. But we've been running ZFS in some form or other for 10+ years. ACL support not as good/easy to use as Solaris/FreeBSD. Not having weird pathological performance issues with kernel memory allocation like we had with FreeBSD though. Sometimes we have issues with automatic pool import on boot, so that's something to be careful with. The tooling is great though, and we've never had catastrophic failure that was due to ZFS, only due to failing hardware.
