I've ultimately become disappointed with For All Mankind. It has its moments of greatness but literally two thirds of it is anti-exploratory, anti-science angst bullshit. I guess it's a a lot cheaper to film that stuff.
I guess I haven't seen that at all. Certainly "For All Mankind" is presumably intended ironically as it very deliberately plays up the Cold War vibe but that seems understandable given the premise of the series. Of course, we can't really know what would have happened in this scenario but I wouldn't expect a great atmosphere of cooperation between the superpowers.