> Even so, I still use Btrfs because I know it is guaranteed to always be present on any Linux without any effort on my part.
100%. My system is rock solid and the last thing I need is rolling the dice after every update on whether my system will boot. https://www.reddit.com/r/archlinux/comments/eywcp7/linux_551...
I'm impressed with bcachefs's accomplishments though, and if they ever reconcile with the kernel I'll surely give it a fair shake.
btrfs has one critical issue they don't fix: it blocks access to fs for minutes if you remove large files. I am not sure how this is acceptable for prod grade fs..
bcachefs on Arch is a bit better supported, we have the distro package maintainer in the bcachefs IRC channel, and I've never lagged on mainline support like ZFS has.
Actual distro support, and doing it right with people actually communicating with each other, has always been a priority for the project.