CheckoutConfirmPageLoadedEvent example

$page->setPaymentMethods($this->getPaymentMethods($context));
        $page->setShippingMethods($this->getShippingMethods($context));

        $cart = $this->cartService->get($context->getToken(), $context, false, true);
        $this->validateCustomerAddresses($cart, $context);
        $page->setCart($cart);

        $page->setShowRevocation($cart->getLineItems()->hasLineItemWithState(State::IS_DOWNLOAD));
        $page->setHideShippingAddress(!$cart->getLineItems()->hasLineItemWithState(State::IS_PHYSICAL));

        $this->eventDispatcher->dispatch(
            new CheckoutConfirmPageLoadedEvent($page, $context, $request)
        );

        return $page;
    }

    private function getPaymentMethods(SalesChannelContext $context): PaymentMethodCollection
    {
        $request = new Request();
        $request->query->set('onlyAvailable', '1');

        return $this->paymentMethodRoute->load($request, $context, new Criteria())->getPaymentMethods();
    }