Many people used btrfs while it was still experimental, and lost data. Attempting to create a btrfs filesystem returned a prompt with this warning (until 2013)

Many people used btrfs while it was still experimental, and lost data. Attempting to create a btrfs filesystem returned a prompt with this warning (until 2013): Btrfs is a new filesystem with extents, writable snapshotting, support for multiple devices and many more features. Btrfs is highly experimental, and THE DISK FORMAT IS NOT YET FINALIZED. You should say N here unless you are interested in testing Btrfs with non-critical data. That prompt was removed when things stabilized, and Fedora's use of btrfs as the default root has not been accompanied by complaints of excessive filesystem corruption (although there are still many rough edges and unfinished features). https://arstechnica.com/gadgets/2021/09/examining-btrfs-linuxs-perpetually-half-finished-filesystem/ https://arstechnica.com/gadgets/2021/09/examining-btrfs-linu...