How do i Replace function from wordpress plugins? - wordpress

Question

I am starting to study action and filter in wordpress. Lets say i wanna add DIV wrap to the output of printif at the bottom of code. Can i just copy all this code into my functions.php and edit some of its codes?
defined( 'YITH_WOOCOMPARE' ) || exit; // Exit if accessed directly.
if ( ! class_exists( 'YITH_Woocompare_Frontend' ) ) {
/**
* YITH Custom Login Frontend
*
* #since 1.0.0
*/
class YITH_Woocompare_Frontend {
public function __construct() {
// Add link or button in the products list.
if ( 'yes' === get_option( 'yith_woocompare_compare_button_in_product_page', 'yes' ) ) {
add_action( 'woocommerce_single_product_summary', array( $this, 'add_compare_link' ), 35 );
}
if ( 'yes' === get_option( 'yith_woocompare_compare_button_in_products_list', 'no' ) ) {
add_action( 'woocommerce_after_shop_loop_item', array( $this, 'add_compare_link' ), 20 );
}
return $this;
}
public function add_compare_link( $product_id = false, $args = array() ) {
extract( $args ); // phpcs:ignore
if ( ! $product_id ) {
global $product;
$product_id = ! is_null( $product ) ? $product->get_id() : 0;
}
// Return if product doesn't exist.
if ( empty( $product_id ) || apply_filters( 'yith_woocompare_remove_compare_link_by_cat', false, $product_id ) ) {
return;
}
$is_button = ! isset( $button_or_link ) || ! $button_or_link ? get_option( 'yith_woocompare_is_button', 'button' ) : $button_or_link;
if ( ! isset( $button_text ) || 'default' === $button_text ) {
$button_text = get_option( 'yith_woocompare_button_text', __( 'Compare', 'yith-woocommerce-compare' ) );
do_action( 'wpml_register_single_string', 'Plugins', 'plugin_yit_compare_button_text', $button_text );
$button_text = apply_filters( 'wpml_translate_single_string', $button_text, 'Plugins', 'plugin_yit_compare_button_text' );
}
printf( '%s', $this->add_product_url( $product_id ), 'compare' . ( 'button' === $is_button ? ' button' : '' ), $product_id, $button_text ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
}
}