I'm glad to see this sub is alive on Lemmy!
I think a bunch of 90s culture lived through a good portion of the 2000s as well.
For example up until 2003 there was this "post Y2K vibe" going around, something that didn't feel exactly like the Y2K in looks but more of an empty shell of it. Lots of 90s stuff was still around and used up until 2005, even technology wise.
CRT TVs with VHS still being dominant in 2005, internet 1.0 still.
Despite seeing the 2000s developing its own identify, it felt like the 90s were still lingering around in one form or another. That's how it felt for me in the south of the US.
Unlike other decades, like the 80s for example were completely gone in 1990 and the 2000s were gone in 2011. There's just something about the 90s that was somehow hard to get rid off.