We're not even close. Peak cultural saturation occurs when boomers embrace something and we're not there yet
Boomers ARE embracing it, in some parts I've seen. It's "the safe version of weed" and they still get to thumb their noses at the youth since THC is still illegal (in CT.)
In fact I don't know who the target for CBD products is outside of boomers. All the other generations are on the real shit.
I also say it's peaked because THC legalization IS coming/here, and once that happens fully (to the point you can buy THC products at a gas station), no one is going to give a shit about CBD anything anymore.