Is that Cerakote the one that scratches really easily then can't be removed?

I was looking at all the different coatings/possibilities.....the guy showed how if you just touch it with a ring from your hand/fingers, itll scuff and won't come out.

He didn't lay into it either, just swiped his hand on it.

I know they make some teflon coatings....and many others, I think I'd stay away from any coating that would scratch super easily.