[shmerl]

I'm using Btrfs currently, but I'm waiting for Bcachefs to replace it.

[mekster]

How far has it come to replace any of the production ready filesystems?

It says it's feature complete in 2015 and was trying to put itself into kernel mainline in 2018 but I don't see much about anyone using it in production.

[shmerl]

It's not production ready so far for sure. I didn't really follow all details on that.