Magento 2 One Step Checkout Extension is the entire checkout process into a single page, eliminating unnecessary steps and reducing customer frustration.
Magento 2 One Step Checkout Extension is fully responsive and optimized for all devices, ensuring an intuitive checkout experience for your customers, whether they're shopping on their desktop, laptop, tablet, or mobile phone. If the Admin wants the follow up with the customers then use Magento 2 Abandoned Cart.
Visit Here:
https://store.webkul.com/magento2-abandoned-cart-email.html