This is definitely the best intro to Linux gaming video so far. But discotrigger mentioned something in the other thread: suggesting that the video would be way better if they showed some of the latest games being played right out of the box. Instead of doing a bunch of set up to end up with starcraft 2. they should have been showing stuff like sekiro and DMC 5, etc.
Those are just install steam, click install, and go. If they showed that, I think you'd see that it's easier and more powerful then you may think watching this video.