Removed the "/wp-includes/css/dist/block-library/style.min.css" file from your WordPress site

wp-remove-gutenberg-block-library-css.php

<?php
//Remove Gutenberg Block Library CSS from loading on the frontend
function smartwp_remove_wp_block_library_css(){
    wp_dequeue_style( 'wp-block-library' );
    wp_dequeue_style( 'wp-block-library-theme' );
    wp_dequeue_style( 'wc-blocks-style' ); // Remove WooCommerce block CSS
} 
add_action( 'wp_enqueue_scripts', 'smartwp_remove_wp_block_library_css', 100 );