Just a user who finds it incredibly useful. I have no affiliation with Better Touch Tool. Hopefully they've found a solution or perhaps find this note since I can no longer reply there.

Currently BetterTouchTool supports: Macbook. For example such conditions allow you to only execute triggers if a certain amount of fingers are touching the trackpad or Magic Mouse. That other user using BTT (where I can no longer reply) was only triggering one 'cmd +' creating the need for repeated pinching in or out - frustrating. BetterTouchTool is a great, feature packed app that allows you to customize various input devices on your Mac. BetterTouchTool is a free Mac app that essentially allows you to configure gestures and controls for your trackpad/mouse, Apple Remote, Leap Motion and. BetterTouchTool 3.870 (September, 5, 2022) Fixed issue with the new Macbook Air M2 Trackpads Added advanced 'Trigger Conditions' for almost every trigger type in BTT. Not as smooth as native would have been but it's good enough for me. I'll try adding a 4th (or more) 'cmd +/-' 'actions' and perhaps that'll get it all in one pinch but I'm happy so far. So, when I pinch out for example, what's triggered is 3 immediate 'cmd +/cmd+/cmd+' creating a good enough outcome for me (only 1 or 2 pinches in or out). BetterTouchTool is a free Mac app that adds customizable gestures to the Magic Mouse, Multi-Touch MacBook trackpad, and Magic Trackpad. Since I can no longer reply there, I thought I'd mention I found a solution that works for me (on this recent and answerable forum) by adding 2 additional CMD +/- 'actions' in BTT. On another forum, someone else mentioned the same solution but that each 'pinch' was the equivalent of only one CMD + / - keyboard shortcut, causing repeated pinching and zooming rather than one smooth one. I use a third party app called Better Touch Tool and configured it such that it replicates the pinch to zoom gesture for mac mail in a manner that's just fine with me.

Better touch tool mouse