Making the listing grid 2-columns on mobile?

Hi,

The theme does not support showing 2 columns on the mobile view. You can try to add this custom CSS code to Appearance > Customize > Additional CSS to do the trick

@media (max-width: 767px) {
    .auto-listings-items.grid-view li.auto-listing.type-auto-listing {
        width: 47%;
        margin-left: 5px;
        margin-right: 5px;
    }
}