ZFS status

A lot of folks use it commercially with huge success. For example, TrueNAS-the-company makes TrueNAS Scale, their current OS, and it's all based on Linux + ZFS. They also sell hardware with pre-installed TrueNAS (Dell machines if I'm not mistaken). Those NAS devices are quite popular and rock solid. The Linux+ZFS solution is so stable that they decided to sunset their earlier product, TrueNAS Core, which was based on FreeBSD+ZFS in favor of doing the multi-year process of switching the whole thing to Linux+ZFS.

Another example is Proxmox Virtualization Environment, which emerged as the primary winner in VMware's (Broadcom's) ongoing slide to irrelevancy in small & medium deployment sizes. It's Debian + custom Open Source software, and while they support a plethora of file systems the one they support the best & recommend the most for single-server deployments is ZFS.

Neither of those are marked as experimental features, and in the case of TrueNAS it's the raison d'être of the whole company nowadays.

My personal experience with both products and ZFS outside of those as well mrirors what you read elsewhere, too: it works great, has amazing features, and well worth a look for any kind of storage environment.

It's here to stay.