The regular sims 4 view does zoom in on a curve such that at fully zoomed-in the camera is parallel to the floor.
In build mode I habitually switch between the views. I'm not sure if Mac shortcuts are the same, but CTRL+Shift+Tab is second nature to me. That toggles between the two camera modes. The Sims 3 style view unhitches the camera from it's predetermined zoom path. So if you were to zoom in using Sims 4 mode, then CTRL+Shift+Tab, you would zoom in and out horizontally and use the middle mouse button for pitch control.