Being able to sit back and have a big bunch o'disks that I can just add and remove devices to is convenient when combined with BTFS raid1: data will be present on at least two disks, I don't care which. I don't think ZFS is able to do this. It's obviously more suited for serious enterprise use where you have plans and budgets... ;)
(Once I too have my data eaten by it I'll no doubt be very grumpy, then again that's what backups are for so...)
More seriously, I'd give ZFS a go but it's still too much of a pain in the arse to use with Linux. If even Oracle Unbreakable Linux can't integrate it properly then what hope does anyone else have?
(Talking about making me build my own kernel modules here)
Debian and SUSE both do this perfectly and automatically.
Doesn't SUSE still use btrfs as their default rootfs?
Looking at `git shortlog -sne --since="1 Jan, 2023" fs/btrfs/` it seems like folks at least at Suse, Oracle, and Western Digital have all made more than a dozen commits this year.