My desktop computing happens on Windows because I need graphics card support (games at home) and because my work pc is windows. I chose the Macbook Air for my travel machine because it's extremely light, it's battery lasts more than a day and macOS is unix-y, I initially planned to install debian on it but I couldn't convince myself that the power management would be as good so I left macOS on it.

Window management is vastly superior in my opinion, I frequently just full screen everything and swipe between the full screens, this is particularly notable in my case since I almost exclusively use the keyboard (get bad RSI from mice)

Updates feel like they have much less friction.

But basically it comes down the underlying unix-y system. I'm never going to do serious development on a laptop but if I pick up a macOS machine it has the unix core tools that I need to get stuff done, vim, ssh etc. (Though there are some pain points mostly they're fixed by brew for machines I'll use for any length of time).

Also, I helped someone set up Parallels the other day on their MBP and tried out air drop for the first time, show me friction-less 4GB ISO copying OTA between Windows laptops that aren't on the same network!