Adobe is probably popping open a champagne for every cross-platform Creative Cloud competitor that gets mothballed with Apple's capital. If Microsoft acquired Affinity next, the Adobe offices would look like a disco ball for a week.
They have already been acquired (by Canva) earlier this year.
Maybe I’m in some sort of bubble.
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.
More recently (2017ish), I was on Windows 7 for another stint at graphics.
Maybe I've just had the misfortune that others have been able to avoid??
Another point is macOS has a significant market share in the creative industries. Personally I know zero designers/illustrators using Windows. My hunch is Mac users represent probably 50% or more of Adobe users.