We all live in our own bubbles. I never saw a tech person using MacOS, it's always Windows or Linux - I assume that's not your experience either (and I only know a few people using MacOS privately). That probably mostly depends on the country one resides in.
Well, the view laid out here also corresponds to actual statistical reality: About 29% of developers reported using Macs (of any kind) as of a few years ago, it's not even close to "most", as some HN visitors would have you believe. The bubble is very real.
Statistically speaking there was no "most developers use this", but the closest OS offering was Windows at 45%.
Given Apple's poor performance on the OS side the past few years I'm not sure the hardware has managed to keep users on their side anyway; they even lost DHH very publicly not that long ago... So the numbers might be even worse now.
Edit:
In the latest StackOverflow survey 31.8% of developers report using MacOS (for personal and professional use), 57.9%/47.6% for Windows (personal/professional use). So both MacOS and Windows are eating into Linux's share at the moment, with Windows offering them to instead run Linux inside of Windows.
