That person is incorrect. WinXP started selling at retail in Oct 2001. I started using it at work in early 2002 and as a senior employee in a tech company I had a pretty deluxe 21-inch Viewsonic CRT which ran at 2048 x 1536 resolution. That Viewsonic cost $1600 new in 2000 and looked great. The company didn't upgrade to flat screens until about 2006 when the Viewsonic was replaced with a 20-inch Dell 2005fpw with native 1680 x 1050 resolution for $800. That's the year Windows Vista came out.
Even in 2006 corporate priced LCDs at the 20-inch size didn't look quite as good as the high-quality CRT I switched from. In some ways (like sharpness) a good LCD could look better but in other ways (like contrast) it wasn't as good yet - so it was still a mixed bag. About 2004 the company started buying newly hired entry-level employees 15 or 17-inch LCDs but they were typically 1024 x 768 and the quality wasn't great. A designer like you would definitely have stuck with a CRT longer both for quality and screen size at a reasonable price.
As a former Windows XP user: this is amazingly detailed and well done! The CRT effect is spot on for me.
Well, not really, and it depended highly on the place of work/study and country/state. For example, my University replaced the CRT ones with LCDs only in 2005-06 (they've used XP in computer rooms for quite a long time, skipping Vista and 8).
I myself used the CRT monitor with winXP until the late 2004.
I used my mom's iMac G3 (CRT) probably until 2004 or so, because I distinctly remember getting stuck on Tutorial Island on RuneScape as a kid, since you had to Right-click -> "Prospect Rock", and at the time, I had no idea how to actually do it with Apple's single-button mice lmao.
Aside from the couple of laptops that came later, I don't think I had moved on [for the worse] until a bit after I put together my first DIY computer (Phenom II 920, etc); I still had a CRT TV in my room long enough to have been using it when Halo Reach came out.