This is only true for 4k monitors on MacOS - and I often run into non-4K monitors in my work hotdesking situation (though admittedly I mainly WFH at the moment)

This is only true for 4k monitors on MacOS - and I often run into non-4K monitors in my work hotdesking situation (though admittedly I mainly WFH at the moment). And Windows solved that not scaling elements by the same amount several years ago.