That's mainly for legal reasons so not comparable. Also zfs isn't just a pve-man-show and has multiple comanies funding development and is mature enough not to loose data. In contrast bcachefs developer Kent Overstreet wanted to violate kernel workflow due to Bugs which might cause dataloss. Sorry, but if you can't work with others due to your new shiny toy still too buggy it shouldn't be used in the first place for anything important.