Turn Off Comment / Completely Turn Off Commenting

<?php
// Disable support for comments and trackbacks in post types
function disable_comments_post_types_support() {
    $post_types = get_post_types();
    foreach ($post_types as $post_type) {
        if (post_type_supports($post_type, 'comments')) {
            remove_post_type_support($post_type, 'comments');
            remove_post_type_support($post_type, 'trackbacks');
        }
    }
}
add_action('admin_init', 'disable_comments_post_types_support');

// Close comments on the front-end
function disable_comments_status() {
    return false;
}
add_filter('comments_open', 'disable_comments_status', 20, 2);
add_filter('pings_open', 'disable_comments_status', 20, 2);

// Hide existing comments
function disable_comments_hide_existing($comments) {
    return [];
}
add_filter('comments_array', 'disable_comments_hide_existing', 10, 2);

// Remove comments page from the admin menu
function disable_comments_admin_menu() {
    remove_menu_page('edit-comments.php');
}
add_action('admin_menu', 'disable_comments_admin_menu');

// Redirect any user trying to access comments page
/*function disable_comments_admin_menu_redirect() {
    global $pagenow;
    if ($pagenow === 'edit-comments.php') {
        wp_redirect(admin_url());
        exit;
    }
}
add_action('admin_init', 'disable_comments_admin_menu_redirect');*/

// Remove comments metabox from the dashboard
function disable_comments_dashboard() {
    remove_meta_box('dashboard_recent_comments', 'dashboard', 'normal');
}
add_action('admin_init', 'disable_comments_dashboard');

// Remove comments links from the admin bar
/*function disable_comments_admin_bar() {
    if (is_admin_bar_showing()) {
        remove_action('admin_bar_menu', 'wp_admin_bar_comments_menu', 60);
    }
}
add_action('init', 'disable_comments_admin_bar');*/

// If Unable to see the Comments from the admin menu:
/*function restore_comments_menu() {
    add_menu_page(
        'Comments',
        'Comments',
        'edit_posts',
        'edit-comments.php',
        '',
        'dashicons-admin-comments',
        25
    );
}
add_action( 'admin_menu', 'restore_comments_menu' );*/

// If you or a plugin has altered the admin bar to remove the Comments menu, you can restore it with this snippet:
/*function restore_admin_bar_comments( $wp_admin_bar ) {
    if ( current_user_can( 'edit_posts' ) ) {
        $wp_admin_bar->add_node( array(
            'id'    => 'comments',
            'title' => 'Comments',
            'href'  => admin_url( 'edit-comments.php' ),
        ));
    }
}
add_action( 'admin_bar_menu', 'restore_admin_bar_comments', 100 );*/