Are there a substantial number of macOS users using touchscreens?
EDIT: I don't know how I forgot about pinch to zoom via the trackpad. While my original question did start me down an interesting rabbit hole of touchscreen MacOS, I 100% agree that a lack of smooth pinch to zoom via the trackpad detracts from the overall user experience.
No macOS machines ship with touchscreens, but trackpad gestures are used heavily throughout macOS. I find pinch zooming on the Mac to feel pretty natural.
This feature is essential for mobile screens, and this is not meant to dismiss your concern, but what do you need pinch-to-zoom for on desktop? Everything is already huge and readable on desktop.
Sure, I’ve got a 12.3″ netbook (running Linux), and I don’t see any point in a variable zoom there either. Though I suppose it is 4:3 and hidpi.
Still, even at 768p you get a bespoke layout for your device, since this is literally the most common resolution still (seriously). The pinch-to-zoom on mobile is only useful for the very specific case of viewing unoptimized content (mostly desktop sites) in a comparatively smaller viewport. It’s not even useful on mobile if the website is optimized (sometimes for worse, but still).
It’s a nice to have, but hardly essential. But people are saying it prevents them from switching, so I am curious why.