"I've enabled the 'Display on Product Details Page' option for PayPal in the admin portal (Store -> Configuration -> Sales -> Payment Methods -> PayPal), but the PayPal Pay button is not appearing on the product detail pages. How can I troubleshoot or ensure that the PayPal button is displayed on every product page?"
I discovered a solution for this issue in my scenario. The problem occurred because my Magento theme was outdated, which prevented buttons from displaying on the product details page. After updating the theme using the "composer update swissup/*" command, the PayPal and Stripe buttons were successfully enabled on the product details page.