What you are saying is you don't really know what you are talking about. Windows 10 Professional has currently 7 different main versions with different levels of support and End of Service dates: 1507(May-17), 1511(Oct-17), 1607(Apr-18), 1703(Oct-18), 1709(Apr-19), 1803(Nov-19) and 1809(May20). So half of those are already obsolete and 5th one has 3 months left. To complicate matters more since anniversary update (1607) each of those has a different Windows Display Driver Model starting from 2.1 to 2.5. Each WDDM version has it's own quirks and has weird interactions with GPU drivers.
To complicate it even more, you have Windows 10 Enterprise 2015 LTSB (WDDM2.0 - EoS Oct-25), Windows 10 Enterprise 2016 LTSB (WDDM2.1 - EoS Oct-26) and Windows 10 Enterprise LTSC 2019 (WDDM2.5 - EoS Jan-29)
Oh and here is the real kicker, Microsoft is still supporting and updating Windows XP if you pay for it and in embedded systems case it's free till April 2019.
Next time do you research before insulting people on topics you know very little about.
Disclaimer: I'm not against dropping support for XP, I am sure DE looked at their hardware survey compared their development costs and number of players with releveant operating systems and hardware. I just don't like ignorance and namecalling.