Over all ‘Harry and Meghan’ is the second highest most watched Netflix documentary ever according to wiki.
I think calling it a 'documentary' is being generous. Whinomentary would be more like it. But it did get high viewing figures, because there is a lot of interest in royal gossip. Now that they have run out of that, it's not obvious what else they have left to sell.
Other than jam.
And is credited with doubling the viewership of The Crown for that season.
"Credited" by whom, exactly? And how did they reach this conclusion? It seems a strange claim to make.