To show Apple Pay, PayPal, or other payment methods on your product page, enable the Dynamic Checkout Buttons toggle in your Zendrop theme settings. You can't customize the Shop Pay button directly, but enabling this setting shows all available payment options.
In the left-hand menu of your Shopify Admin dashboard, click “Online Store”
Then click “Themes”, which will appear just below
On the right side of your screen, click “Customize”
Inside the Customize theme screen, select the product page :
4. At the top of your screen, click “Home Page”
5. Then select “Products”
6. Click “Default product”
Inside the Product Page:
7. Select the “Buy Buttons” section
8. Check if the toggle for “Show Dynamic checkout buttons” is turned on.
Preview your product page to confirm all available payment options appear at checkout.