BC issue with woocommerce_thankyou_order_received_text

[websupporter]

Prerequisites

• I have carried out troubleshooting steps and I believe I have found a bug.
• I have searched for similar bugs in both open and closed issues and cannot find a duplicate.

Describe the bug

In #39758 we introduced a new template for the order-received note: https://github.com/woocommerce/woocommerce/blob/trunk/plugins/woocommerce/templates/checkout/order-received.php

The new template escapes now the output of the woocommerce_thankyou_order_received_text filter, which was not escaped before: https://github.com/woocommerce/woocommerce/pull/39758/files#diff-564a2935633e7fbf95ba8f1cae13c198399275de26dfb1c994868b6e9a3437c1L42

This introduces a bc problems for integrations using this filter and returning HTML.

Expected behavior

The output should not be escaped. This would follow also how we treat other filters in the templates, for example here:

woocommerce/plugins/woocommerce/templates/myaccount/my-orders.php

Line 37 in 7f9322c

<h2><?php echo apply_filters( 'woocommerce_my_account_my_orders_title', esc_html__( 'Recent orders', 'woocommerce' ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></h2>

or in this template https://github.com/woocommerce/woocommerce/blob/7f9322c85858a17f6e9e9e79eaa3aefeda1a0624/plugins/woocommerce/templates/myaccount/my-downloads.php

Actual behavior

The output gets escaped by using esc_html(), which converts HTML tags into text.

Steps to reproduce

1. Write and activate a small plugin like `add_filter('woocommerce_thankyou_order_received_text', function(){ return '

   Thank you!

   '; });
2. Create an order
3. See the escaped output like <p><strong>Thank you!</strong></p>

WordPress Environment

WC Version: 8.1.0

Isolating the problem

• I have deactivated other plugins and confirmed this bug occurs when only WooCommerce plugin is active.
• This bug happens with a default WordPress theme active, or Storefront.
• I can reproduce this bug consistently using the steps above.