1 button mouses haven’t been a thing for 15 years. Just because you can’t see it doesn’t meant the other button isn’t there and working.

And more importantly, Mac trackpads are the shit, 2-4 finger gestures, pinch zoom, 2d smooth scrolling and occasionally even rotating is super handy and really intuitive. Especially for 3D CAD on a laptop. They’re so good that a lot of people buy magic pads for desktops.

It’s why I’ve never settled on Gimp or Inkscape unless I’m on a Linux box. Also it’s not much fucking work to swap ctrl/alt/command keys around, but hardly any devs even bother with that because they assume Macs are still little blue blobs from 20 years ago.