FYI
I do have Vulcan on my Win7, running Red Dead Redemption on Vulcan. No problem at all. XP have made a different implementation that uses Win10 libs.
OS is not worn out like cars. They keep getting more stable over the years with bug fixes whole time.
I do have to to go to Win10 the day I build a new PC or my motherboard (Asus) gives up. Only Win10 drivers for latest MB
I have never said that I will never go to Win10, I just wait some years until several patches/fixes has been done. Or my PC breaks down.
Last word from me about this