Finally, something unusual.
I’m using macOS and my brother’s using Windows. Let me try to break down for you as much as I can based on MY experience.
Well, in terms of security and privacy, the winner is macOS. Period. You have never heard of any macOS that is sent for repair due to viruses, due to their aggressive approach to user privacy to protect their users from virus/threat, MacOS did an excellent job in compartmentalizing their system.
Also, since Windows has a much larger market, malware tends to aim at Windows users.
My MacBook has been with me for like, five years? Never gotten ANY viruses before, and yet my brother’s Asus has only gotten his laptop for like two years, and it has been sent for repair due to viruses for three times at least.
He only uses windows because he can play almost any games .