Btrfs is stable and has been widely used in production for years. Facebook uses it, SUSE CaaS uses it, the officially recommended platform for SAP is SLES, whic

Btrfs is stable and has been widely used in production for years. Facebook uses it, SUSE CaaS uses it, the officially recommended platform for SAP is SLES, which has defaulted to btrfs for the root filesystem since 2014. Btrfs brings snapshots, rollback, deduplication, storage pools, checksumming, send/receive and a whole host of other features. It's a completely different type of filesystem to ext4. Calling btrfs "experimental" at this point is like calling electric cars "experimental".