Dropdown field — Sort modern dropdown choices alphabetically

function wpf_dev_modern_dropdown_search_results( $config, $forms ) { 

    $config['shouldSort'] = true;

    $config['shouldSortItems'] = false;

    $config['sortBy'] = 'label'; // Sort by label to achieve alphabetical sorting

    return $config;

}

add_filter( 'wpforms_field_select_choicesjs_config', 'wpf_dev_modern_dropdown_search_results', 10, 2 );