I begrudgingly upgraded to Windows 10 because it will be the only OS with DirectX 12 support.
However the absurd level of phoning home the OS does made me also build a new machine running Debian, which I now use for all my work and general personal computing.
My Windows machine is gaming/Steam focused only now. No cloud integration, no Microsoft Account.
If 99% of games worked on Linux, or SteamOS makes good progress as a viable replacement for Windows on a desktop I'll drop Windows in a heart beat.
I have zero attachment to it and the OS offers nothing I can't get elsewhere. Except perhaps for Netflix, the Windows Store is a wasteland of terrible apps that for the most part are worse than their Win32 counterparts.