That's drag and drop.[1] App support is varied on this.
Alternatively, though I don't know if it works on Mac, on X11 Linux you can middle click with touchpads by tapping with 2 fingers. Tapping with 3 fingers right clicks. That's going to work anywhere clicking does, because it's handled by the touchpad driver rather than by app convention. If it doesn't work by default, it can be configured with `synclient`.