The good stuff was more sporadic.
Music was shit barring the indie revival that really didn't get much airplay, the post punk+garage rock revival, and a lot of the melodic death and doom metal bands maturing to create metal outside of using death vocals. Cookie cutter pop music started becoming overwhelming at the end of the 90's and continued on in this era, hip/hop rap continued the decline from the late 90's as well. Country music continued to go full on pop, rock was played less on the radio, etc. Nu Metal also continued on from that late 90's start. A lot of cheese.
Videogames, started off with the N64/Game Boy Color/PS1/Saturn...um Dreamcast era, then came the Gamecube/Game Boy Advance/PS2/X-Box era. It was a pretty solid era. Videogames were one of the things that weren't bad in this era.
TV, well aside from CBS going to shit, MTV officially dying off, and the whole reality show explosion there was a bunch of good shows. Adult Swim came into being, more mature cable shows that took more risks started to pop up more, Fox was still a good network. We saw more shows in general that had serialized plots and less comedies that were laugh tracked which lead into a renaissance of sorts that came later, but it started becoming more of a thing in this era. The science and history based channels still showed science and history based shows. Mixed bag as this era started to lead towards so many channels dying and reality tv becoming so prevalent but other areas of tv started to get better.
Movies were a pretty mixed bag too. Remakes of Japanese horror movies then remakes in general started to trend. Lower budget or profile horror movies could be really damn good though and more risks were taken there. Marvel movies started up (post-Blade of course). There was a lot of cheesy stuff that echoed the music from this era (continuing on from the late 90's). the Harry Potter movies started up. The cheese started to wear off closer to the mid 2000's.
Fashion was terrible. I never really changed what I wore or my hair thankfully, but the whole frosted tips, baggy as hell clothes, etc. trend is just hilarious to look back at. It's like white trash and guido culture merged.
MMA was still in its' dark era at the beginning of the decade but got better over time and TUF came along in the mid-2000's and saw the sport get a massive popularity boost. Pride had the start of its' best years in this era as well and contained most of them save for its' very end.
Sports. The NBA started its' downward turn as defense became less and less of a thing but was still watchable for most. The NFL was good and we got to see the beginning of Brady, Brees, and Peyton's long and storied careers. The MLB was fine but you could see where money dominated, we got to see the Red Sox and White Sox finally get championships after close to 100 years without one. The NHL was fine outside of the lockout year.
Pro wrestling lost me in this era. Only sporadically watched it then quit as John Cena and Randy Orton started to become a thing (can't recall the years, it went from Stone Cold/The Rock/Mankind/HHH/The Undertaker to Brock/Angle/Guerrerro/Benoit/Mysterio and I think Cena and Orton started to show up somewhere in that era).
The internet was still a bit in wild west territory, it had shittier web design, worse speeds, and other negative aspects that come with weaker technology but otherwise was more interesting than it is now in a lot of respects and people weren't zombies as much.
Outside of the media we had the September 11th attacks and wars and politics really started to go to shit and become more fractured, plus we had the Patriot act, etc. This was what makes looking back to the early to mid 2000's so damn depressing in my opinion. This was the start of so much bs that still continues 20+ years later.
The end of the 90's and early 2000's sort of blended together. It wasn't until like 2003 that things started to differentiate.