I have these settings to have print background option selected by default on browsers when printing

* {
    -webkit-print-color-adjust: exact !important;
    /* Chrome, Safari 6 – 15.3, Edge */
    color-adjust: exact !important;
    /* Firefox 48 – 96 */
    print-color-adjust: exact !important;
    /* Firefox 97+, Safari 15.4+ */
}

But they still do not work.

I still have to select the option on print dialog manually, however once I manually select it, it remains selected for subsequent prints.

But how can I make it selected by default when the print dialog opens?