What filesystem is currently best for a single nvme drive with regard to performance read/write as well as stability/no file loss? ext4 seems very old, btrfs is used by RHEL, ZFS seems to be quite good… what do people tend to use nowadays? What is an arch users go-to filesystem?
XFS supports reflinks, so it’s kind of snapshot and CoW capable. Someone was working on some tool to make snapshots on XFS by utilizing reflinks.