Holy Crap.
This is nothing but an ongoing Frakking headache.
Usually the google stuff plays nicely together.
Well, They have evidently each grabbed a 2×4 and are swinging for users heads.

People do YouTube for many different reasons.
Here are mine.
The short version is if you want to explain something, you have to get your hands dirty. Try it, then talk about it. Find the pitfalls.