Although I did watch this video, I've stopped watching F9, apart from the induced boredom, no matter how he conducts his experiments, I take them with a pinch of salt, he's no scientist (neither am I).
I've used the Screwfix fuel additive for a couple of years, whatever happens in those fuel tanks of my machinery is a mystery, but I know one thing, my machinery starts and runs brilliantly when I use the additive. That's all the science I need.
Also, I used Seafoam in my car and bike for cleaning the fuel system, not for storage, and that too made a huge difference, especially to the performance and fuel consumption of my car. My car returned back to it's original 34Mpg, after it had dropped to low 20'sMpg.