Hey there!
Stripe has some resources on the development side around what is needed for an integration – I am not seeing a specific list of what those files do, and the files are minified so I’m not able to see the exact code myself.
We also have our Stripe repository here: https://github.com/woocommerce/woocommerce-gateway-stripe
This would list where these files are included, and may contain information around why those are included in the product pages.
This is a fairly complex development topic, so I’m also going to leave it open for a bit to see if anyone is able to chime in with additional information to help you out.
I can also recommend the WooCommerce Developer Resources Portal for resources on developing for WooCommerce.
You can also visit the WooCommerce Facebook group or the #developers
channel of the WooCommerce Community Slack. We’re lucky to have a great community of open-source developers for WooCommerce, and many of our developers hang out there, as well.