Thank you.
The core conflict was between “WooCommerce Payments” plugin and the “WooCommerce Stripe Gateway” plugin.
The issue apparently is that
A) The Apple Pay Button only appears on Safari, however the “-OR-” line appears regardless.
B) The WooCommerce Payments plugin and the Stripe Gateway plugin both inject these payment buttons into the product page. It’s unclear to me how I was setup with both of these plugins without a warning about this duplicate functionality.