I have seen those, yes. These are reference materials, not an introductory presentation that explains the concepts and their relations, design rationale and use cases in context.

ZFS: The last word in File Systems:

Part 1: https://www.youtube.com/watch?v=NRoUC9P1PmA

Part 2: https://www.youtube.com/watch?v=TwCXVp_u86o

ZFS In the trenches: https://www.youtube.com/watch?v=YGJ9cYecdCc

Some good stuff here: https://www.youtube.com/c/Deirdr%C3%A9Straughan/search?query...

It's a terrible manual. Doesn't explain how to export via NFS, SMB. For instance, when to use zfs set vs /etc/exports

Doesn't explain why zfs list sometimes shows datasets that have no mountpoint, but doesn't allow you to set a mountpoint (because it's not mountable).

ZFS is a great technology but it's documentation is terrible.