With Magento 2 Extension for Custom Cart & Checkout Message you can engage your customer by sowing them personalized messages. You can display multiple messages on different pages . You can display messages to Cart, Checkout, and order success pages. You can utilize 6 different customizable layouts for highlighting a message.
Key Features
Custom Message or Cart, Checkout, Order Success Pages
Create different types of custom message
Add a call to action with URL to each custom message
Schedule the display of custom messages
Choose and personalize any of the 6 layouts
Restrict messages by customer, products, store views
Set conditions with products, cart, and cart item attributes
More
45 days money back
FREE lifetime support
FREE lifetime upgrades
2 Minutes installation
Developed by Magento certified developers
Verified by Market Place
Easy to install
Responsive Design
100% Open Source

Complete Detail & Luve Demo - https://www.fmeextensions.com/magento-2-custom-message-display-on-cart-checkout-success-page.html