A lot of desktop trading platforms are Windows only. And sometimes I want to play games.

Also when I built my last PC like 3.5 years ago the RTX 2080 wouldn't output video properly with any linux distro that I tried to install so I ended up installing Windows 10 and been using it ever since.

I have Ubuntu running in WSL for when I want to do linux things. And hypervisor is always there if I want to run a specific distro for something. Plenty of cores and RAM for virtualization.