Title and Tagline not showing in mobile version

Hello ImprobableCactus,

Apologies for the inconvenience. Kindly apply the CSS provided below to ensure the title and tagline are displayed correctly on all devices.

.wp-custom-logo .wp-block-main-header .wp-block-group.wp-block-site-identity {
    display: block;
}

You can add the CSS code by following Dashboard -> Appearance -> Editor -> Styles -> Addtional Css.

Below is the screenshot.

Kind Regards,
Sujapati