Hi. I am not using any custom elementor template for product page. However, I suspected the Custom Product Tabs by Yikes plugin as that is supposed to change the page. Sadly, deactivating that plugin did not fix the issue as well. So I ended up deacting every plugin except for WooCommerce itself along with Elex discount plugin. But the problem was still there.
Check this screenshot, only woocommerce & payment per discount plugin were active. https://i.imgur.com/qqegJuj.png