Coupon code feature is not working properly in the checkout page on Magento 2.4.7

[TuVanDev]

Preconditions and environment

• Magento version: 2.4.7
• The checkout page only contains "Review & Payments" step as the cart only contains virtual or/and downloadable product types.

Steps to reproduce

Example:

1. Create a Virtual/Downloadable product.
2. Navigate to storefront as a guest.
3. Click “Add to Cart” on the Virtual/Downloadable Product.
4. Open mini shopping cart and click “Proceed to Checkout”.
5. Click "Apply Discount Code" text to expand the coupon code form.

Expected result

The discount code/coupon input can be filled in, and the button title text displays as "Apply Discount".

Actual result

The discount code/coupon input is disabled, and the button title text displays as "Cancel coupon".

Additional information

It's important to note that I've tested this issue on Magento 2.4.6 and it didn't occurs.

Release note

No response

Triage and priority

• [ ] Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• [X] Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• [ ] Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• [ ] Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• [ ] Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.