If you use Stripe for European cards, the Stripe Standard Processing fee will be 1.4% + €0.25. You will only be charged with the 2.9%+$0.30 fee. There are no extra processing fees when using Apple or Google Pay. A customer only needs to choose Google Pay on checkout to complete the order:

The same goes with Google Pay - all payment information is already stored on a customer’s device, so there’s no need to enter credit or debit card details manually. Orders paid with Apple Pay will display the Apple Pay icon in the order details in your Ecwid admin. All they need to complete a purchase is to choose Apple Pay at checkout and identify themselves with Touch ID or Face ID. When using Apple Pay, customers don’t have to manually enter their credit card details or shipping info as this is already securely stored on their device. If your store is added to multiple websites and you want to enable Apple Pay on all websites, add each domain in your Ecwid admin → Payment → Lightspeed Payments or Stripe by clicking Add domain.

Apple pay google pay