Hacking.
I currently have DX12 operating on XP-x64 (basically consumer 64-bit Win Server 2k3) with some minor hardware recognition issues. I have many modern games running this way. Many of them run much faster under XP than under their officially-supported OS (Win10+) which is an absolute shame.
Lots of registry modifications and .ini file modifications, and a huge chunk of help from someone who is currently making modern browsers and various modern software bits work under Windows98.
"I imagine you'd also need to somehow get device drivers for a newer graphics card to run"
That part is a bit more trivial thanks to unified driver architectures for GPUs. Not much more trivial, but a little.
"as well as for newer hardware in general if you don't want to be CPU bottlenecked"
CPU is the primary issue I'm having, indeed. Chipset drivers are the second biggest issue.
"Have you posted about this anywhere?"
And have Microslop banging on my door with lawyers because I show how modern versions of AI-slop-coded Windows are actually slower than older versions coded by actual humans? I'm good on that one boss.
I highly doubt they care about anything people do with old versions of Windows. The full XP and Server 2003 source code has been on Microsoft owned Github for years now.
Recently I went to the dentist, and while they weren't using XP, they were using Windows 7 to run some in-house software (I assume) to check my insurance
Yes, im from a former socialist country
For me I enjoy it as a fun/hobby OS. I can install all my favorite tools and games and boot it up whenever. It's also fun to see what modern work can still be done on old OSs. Recent versions of PuTTY work so I can in theory sit on my XP box and drive LLM agents with Winamp playing in the background, chat on MSN with Escargot, etc.
Kids those days. Windows "release version" was actually a beta version. NT 4 needed 6 SPs to become stable, Win2k needed 4 SPs and XP needed 2 SPs.