commerce-8.x-2.8/modules/payment/commerce_payment.links.task.yml

entity.commerce_payment.collection:
  route_name: entity.commerce_payment.collection
  base_route: entity.commerce_order.canonical
  title: Payments

entity.commerce_payment_gateway.edit_form:
  route_name: entity.commerce_payment_gateway.edit_form
  base_route: entity.commerce_payment_gateway.edit_form
  title: Edit

entity.commerce_payment_method.collection:
  route_name: entity.commerce_payment_method.collection
  base_route: entity.user.canonical
  title: Payment methods