I'm pretty sure they're just treading water this year, and focusing on their in-house design for the Tensor G5 in 2025. Hopefully it doesn't break Graphene support.
Yeah, bcachefs is still very very young, and not ready for much of anything beyond tinkering. But I'm definitely excited to have a native filesystem that's designed with tiers in mind.
It is 16 years ago, that's pretty old in terms of technology.
It's also an evolution of ex3 and ext2, and ext if you want to consider it's very short lifetime. In fact, the lead developer stated in 2008 that it was meant as a stop gap, as it's based on old technology with some new features, and that BTRFS was the future.