A solid article, but missing discussion of XFS and Btrfs. I would have enjoyed the author’s analysis of the former in particular, especially as compared to ext4.
Also biased towards APFS which has quite some problems, e.g. unicode normalization hell.
Yeah...he even alludes to it in his APFS section: "hey I talked about all those other filesystems so I can talk about what I really want to talk about...how awesome I think APFS is".