Filter Wordpress Posts by User Meta (Custom Post Type Taxonomy)

functions.php

add_filter( 'posts_where' , 'me_posts_where' );
function me_posts_where( $where ) {
    if( is_admin() ) {
        global $wpdb;
        
        // Get Current Page
        global $pagenow;
        
        // Get Current Logged In User
        global $current_user;
        get_currentuserinfo();

        if( $pagenow=='edit.php' ) {
        
            // Get User ID
            $user_id = $current_user->data->ID;
            
            // Get User Department using ACF API for get_field
            $user_department = get_field('user_department', 'user_' . $user_id);
            
            // If no Department has been assigned, return entire Feedback (for main admin)
            if($user_department != '') {
                $where .= " AND ID IN (SELECT object_id FROM {$wpdb->term_relationships} WHERE term_taxonomy_id=$user_department )";
            }

        }
    }
    return $where;
}