A good reason to use Btrfs over ZFS is if, like me, you use Fedora Silverblue. It's supported by default while ZFS is essentially impossible to use – I use VMs

A good reason to use Btrfs over ZFS is if, like me, you use Fedora Silverblue. It's supported by default while ZFS is essentially impossible to use – I use VMs for the occasional need. Another good reason is simplified tooling – ZFS has a lot of special ways of doing things different from all other filesystems. RedHat seemed to remove Btrfs because that want to move towards Stratis, not because ZFS or XFS is good enough. None of them are perfect yet and my best hope for the future is bcachefs.