Payment methods

Hi,

I’m building a website for selling online graphic design services. So all of the products are virtual.

I have a few questions about the Payment Methods.

What’s the difference between PayPal and PayPal Checkout? Which one’s better?

Which Payment Methods are a must-have on every e-commerce website? I currently use Stripe and PayPal Checkout. Am I missing something?

There’s also a million other Stripe payment options, like EPS, iDeal, Alipay, P24 etc. What are all of these for? Should I be using any of them?

Thanks in advance!