KD3 is that album. Whenever I go back and listen to it, it's classic quality. But what it lacks is IMPACT. It didn't shift the world the way Illmatic, IWW, Stillmatic did. KD3 is up there in quality and maybe will be looked back in retrospect as a worthy album to deem as classic. But Nas and the album don't permeate the mainstream. Nas isn't really for the kids though. His demo is older guys (like me).
Theres like a whole generation of hip hop artists old and new thats come out in the 2020s and late 2010s that didnt have cultural impact that we'll see how its remembered in like 10-15 years
Im talking not just Nas/Hit Boy's run but
-Black Thought's run
-The Game's Documentary 2 and 1992
-Royce with Premier and on his own
-Freddie Gibbs and all the producers he worked with
-Griselda
-Lupe Fiasco's post major label run
-Joey Badass
-Boldy James
-JPEGMAFIA
-Roc Marciano
-Ka
-Stove Gods/Romez Streetz etc etc
Tons more Im forgetting
None of these impacted mainstream popular culture of hip hop but I think were some of the best albums and I like to think at least 3 of the 5 Nas/Hit Boy albums being in conversatns and acclaim will be remembed. Especially so much of the narrative was look at what an older rapper can do creating a new prime
Thats all you can ask for not songs out and about and Platinum albums