I'm one of the dudes running Windows 7 on unsupported hardware (Ryzen 3900x, some mobo that isn't supported by W7 and modified drivers from some random Chinese dude on the internet so it actually works). I'm using it mostly to play games that don't support Linux (anti-cheat spyware, as someone nicely put it), while daily driving linux on the same machine on another HDD (can't be hit by cryptolockers because windows doesn't detect it ;) ).
Windows 10 is garbage. It's a mobile OS - the "File" menu in Microsoft Word opens across the whole screen with most of it being empty space, the start menu fucking shows ads and search can't help itself but do random internet searches. Always on "Cortana" for god knows what reason that you can't turn off without editing registry (can you even do that anymore). On top of that, it's basically spyware. How can you protect yourself from malware by installing more malware?