Apple Pay button getting broken on WooCommerce Single Product Page

Looks like the screenshots didn't make it into the original post. Trying again:

Apple Pay button broken with GP Premium activated
Apple Pay button correct with GP Premium deactivated
Apple Pay button correct with WordPress Twenty Twenty-Three activated and GP Premium deactivated

Found a solution to display the Apple Pay button on WooCommerce Single Product Page. Yay!

#wcpay-payment-request-wrapper,
#wcpay-payment-request-button-separator {
	width: 100%;
}

Caveat: This is specifically for WooCommerce Variable Products using the WooCommerce Payments plugin to generate the Apple Pay button.

Note: The Apple Pay button might NOT work with WooCommerce Variable Products that are using payment plugins other than WooCommerce Payments. From what I've read, the Apple Pay button might not capture product variations (like size and color), but just the item name and price. Double-check that your non-WooCommerce Payments plugin is actually compatible with WooCommerce Variable Products.

Hi there,

i think the issue arises with the use of the Quantity Buttons option that GP Premium adds with the Woocommerce module which, can be disabled in Customizer > Layout > Woocommerce.

It makes the form a flex box, so those other elements need the width 100% applied to them.
Its a tricky thing to automatically fix as each site that has additional payment or variable product options will behave differently. We will take a look to see if we can improve this.

But it seems you have a working solution and thanks for sharing that.