Cerakote and octane rating

TT5.9mag said
Coating the piston or chamber has nothing to do with the octane rating of the fuel. Detonation and pre ignition are two entirely different animals. Pre ignition could be changed by coatings but octane and detonation tolerance will not.

Swain claims otherwise. Thats why I was asking about any real world experience or testing that anyone knows of.

"The ceramic also spreads the heat evenly over the entire coated surface reducing detonation, pre-ignition and allowing the use of lower octane fuel."

https://swaintech.com/race-coatings/race-coating-descriptions/piston-domes/