Nope, I'm going in completely blind (minus the initial gameplay video of the game), I've seen none of the streamed footage.
I've seen lots of streams and seem many of the features but it hasn't in any way tainted my view of the game. That's a testimony to how diverse the game is. There are many features you won't have seen in the streams and that's what I envy you for.
The PS5 Exists.