I watched this a couple weeks ago and it just seems to have so little information density - like this guy talks and talks and talks and the actual content is like 15 minutes of this.
Maybe you have some fun with BSD-Lore (Kirk McKusick):
https://www.youtube.com/watch?v=DEEr6dT-4uQ
Or Solaris/illumos (Bryan M. Cantrill):
I've used an Ubuntu desktop at work for a few years and it's a nice environment.