Accessibility > Zoom behaves differently depending on how your trigger it…

For years I’ve been using the Accessibility > Zoom feature with the ‘low light’ filter to make the screen really dim. Crucially, it just dims the screen, but doesn’t magnify the screen — which is great as this is what: a dim screen, but not actually zoomed. I trigger it via the Accessibility Shortcut and it works well because, in combination with setting the screen brightness to zero, it results in a very dim screen.

But…when I trigger it via a shortcut {Turn Zoom On}, although it does the dimming just fine, it also magnifies the screen display too.

Does anyone know how I can trigger the screen dimming via a shortcut without magnifying the screen please?

Many thanks!