Just a demo of what a paymentlink looks like. Generated in your Stripe interface, and then simply inserted into an article in Joomla.
You can then tailor the text in the Joomla article the way you like, even with images, etc.
In Stripe I setup a requirement to get a shipping address, and did not specify any shipping cost.
You can decide different shipping cost for different countries, etc.
When you have finalised the configuration of your product you then get a link, and use this link in the article to send the user to the payment.
You can try the full payment by entering the test creditcardnumber 4242 4242 4242 4242 , and then insert a valid (future) expirydate and any cvc code