Data checksums in particular is 90% of the reason I want to use a newer filesystem than XFS or Ext4. This is useful for almost any usage. Snapshots a bit less

Data checksums in particular is 90% of the reason I want to use a newer filesystem than XFS or Ext4. This is useful for almost any usage. Snapshots a bit less so, but even for my laptop this would be useful, mostly for backups (that is: create snapshot, backup that, and then delete the snapshot – this is how I did things on FreeBSD back in the day). A second use case would be safer system updates and easier rollbacks – not useful that often, but when you need it, it's pretty handy.