I will be curious to see what Linus Tech Tips would have to say about GrapheneOS. I found out the same as everyone else did.
I imagine he'll be using it for a somewhat different personal reason than for our major security offerings. I guess his views on it could boil down to how much missing or blocked Google Play functionality would influence him? I'm not speaking as a project member here and I don't watch youtubers so I could even be completely wrong.