I feel like the last 30 years are significantly less distinctive than the prior 30 (actually 70+) years. The 20s, 30s, 40s, 50s, 60s, 70s and 80s all had iconic and partitioned cultures that are instantly recognizable. I feel like that started to fade a bit in the 90s (what I call the Pottery Barn decade). The 2000s have felt more "alive" to me than the 90s but they're also significantly more post-modern and less distinctive. I consider the 1980s "peak humanity", prior to mega capitalism and data driven marketing enabled by the rise of computing power. I don't think we could ever go back to an iconic and focused cultural decade like say, the 1960s.
BTW Chuck Klosterman discussed this at length in this 2022 book on the 90's: https://en.wikipedia.org/wiki/The_Nineties_(book)
I think it's a pretty deep point -- your memory and consciousness are shaped by the media environment (media being the thing that Klosterman thinks about obsessively)
And the media environment drastically changed after the 90's -- because of the Internet
I think his main point was about access to media in different eras, but it's worth reading directly if you feel like that