The key word is *could*. A Windows computer from 2009 *could* technically still be used and up-to-date. That does not mean that it is normal, recommended, officially supported, expected, or will be done by the vast majority of consumers.A PC purchased in 2009 could still be running up to date Windows 10 today.
Iirc OCLP for macOS technically supports Macs going all the way back to 2007. Does that mean that someone should still be using a 2007 iMac as their main computer in 2025, even if it’s technically supported? No!
Also, I don’t know any windows computer that you could literally open right out of the box, never upgrade yourself and still be running the latest software in 2025.