I used "90s" as a shorthand. Elsewhere in the post, earlier, I said 1987-2005. I'm not a fan of ENT, stopped watching six episodes in, eventually binged the whole thing in 2010, and haven't revisited it since. I don't hate the series, it's just that it's the one Star Trek series I can't get into to save my life. So, it's kind of "Oh, and that other series." But, if you want to know where I'd put it, it would be with TNG, DS9, and VOY. But it comes so much later, it's like the Cousin Oliver to Marcia (TNG), Jan (DS9), and Cindy (VOY).
For me, personally, what I think of as the '00s didn't begin until Fall 2001. Not just because of 9/11, but it was when I transferred from community college to university and met several of the friends I still know today. To this day we're still a tight-knit group. And of course, Trek shifted its series and setting. And Lord of the Rings and Harry Potter came out. It felt like the beginning of a new era, all the way around. Overall, it feels more like when the calendar rolled over to January 1, 2000, it was only the '00s as a technicality. Technically it was the '00s, but it still felt to me like the late-'90s. Clinton was still President, nothing had really changed, and my life was still the same as it was toward the end of the '90s. Fall 2001 is when it felt to me like it actually really was the '00s, totally and completely. Longer answer than I intended but I wanted to give context for how I see things personally.
EDIT: So it perplexes me when people who don't like DSC can't move on and will go out of their way to hate-watch the show. I don't get it at all. When I realized I didn't like ENT, I moved on. So it's like I could do something that they can't.
I told ENT Bashers the same thing way back when, too. I told them they should move on. So there's no love lost between me and them. I tried to put as much distance between myself and them as possible.