Had a look at that video - you were never meant to see the actual node set, which would have made the whole video worthwhile. As it is, it's pure promotion and even then. I'd be ignoring friendly shade - dot - com as a vendor or reasonable developer as what was shown in the video isn't even on their list of products to sell!

Ordinary.

Get onto blenderartists.org - you'll learn how to put together a decent shader. Then, that texture will be reasonably trivial to set up.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks