I hope I don't get chastised for asking this...
Why the hype for RDR2?
I own the first. I own the expansions. I got about halfway through the main game and just couldn't play it anymore. One of the most bothersome things was random people constantly coming up to you as you free roamed. I still have it, just packed away in the attic with the games of yesteryear.
Do you not like other, similar open-world games? If that's the case, there's no explaining the hype to you, because it's just not your thing.
If that's not the case, and RDR just didn't grab you ... see not explaining the hype.
This one looks to be an evolution of such game worlds, though, with promises of NPCs remembering your actions, persistent relationships, dynamic conversations, etc.