XFS is not the default on most systems and I hardly ever hear about it in general, so I really never paid much attention to it in.
Seems like people say it is more CPU heavy than EXT4, so unless it's way more reliable, would it really be the best choice on a pi/router/subGHz commercial NAS chip?
We used to test some installers on XFS servers for Redhat stuff. XFS need far fewer "corrupt drive" fixes that than ext4fs on those servers. (probably 1/10th as much corruption) and we were constantly just doing straight power offs on them (no soft shutdowns). I think XFS doesn't get the respect it deserves if you don't need a "fancy" file system like zfs or btrfs.
Seems like people say it is more CPU heavy than EXT4, so unless it's way more reliable, would it really be the best choice on a pi/router/subGHz commercial NAS chip?