I'm not really versed in the world of filesystems as well as I'd like. I saw one random Reddit comment stating: bcachefs is (optimistically) a decade of wo

I'm not really versed in the world of filesystems as well as I'd like. I saw one random Reddit comment stating: bcachefs is (optimistically) a decade of work away from being a realistic alternative. What does the work schedule and real world applicability (beyond proofing) look like for the future of Bcachefs and why is a completely new filesystem being made versus improvements to existing ones?