Question for OG Storyline Veterans

I understand all the way to the Black Ops 4 ending, and I haven't deep dived into the story with any post games like I did back in the day, I just want to know, is everything from WaW to Black Ops 3-4 still cannon? Is the Kronorium is still fully cannon? I guess my question might be is there anything in Cold War, Vanguard etc that may have altered the storyline that's seared in my head from my youth and everything I read in the Kronorium still fully fact?