GPU passthrough on W10?
I was thinking more about that but on Linux... as I mentioned on the post:

I wanted to see a how could I make my setup a little more private (in short words, I saw SOG Muta's tutorial on Manjaro + Virtual Win 10) and found out I couldn't do it because I required two GPUs, one for host OS and the other for guest OS.

I also do have dual-boot on both OS, and use W10 Privacy (where I've disabled almost everything-- even applied a light firewall setting), but sadly, Manjaro has some issues on my USB WiFi adapter (it detects WiFi but can't connect), so I haven't used it in a while. I'll wait until I have my Ethernet cable all set.

BTW I'm reading right now about QubesOS. Looks like it's for virtualizing and it looks like it's privacy-focused; I would love to virtualize W10, and even if I somewhat manage to do it (whether I do it on Linux or Qubes), I would most likely have performance issues, unless GPU usage is not required on either QubesOS or any other Linux distro that doesn't require a GPU.