Zooming in and out of Maps with the mouse

I have a system with a MacAlly scroll wheel mouse. When I use the scroll wheel on Maps or Find My it functions to zoom in and out of the maps. When I'm in maps.google.com the scroll function on a Magic Mouse will also zoom in and zoom out of the map. However, in Maps and Find My the scroll function on the Magic Mouse will move the maps up or down sideways but will not zoom in or zoom out. The scroll function is doing exactly the same thing as click and drag. There doesn't seem to be any way to get a zoom function on the Magic Mouse. Is this really so? Am I reduced to clicking the tiny + and - buttons to zoom in and out? Is there no way to have a zoom function on the mouse?

Thanks very much.