How to create one page products with checkout in one single page in WordPress

So, I saw a PHP website who built everything like: "user input","payment method","extra things". Screenshot down below.

Does anyone know how to create something like that in WordPress?

I just want to create products information and checkout page in one single page like that. Someone please help me.

source https://stackoverflow.com/questions/73858327/how-to-create-one-page-products-with-checkout-in-one-single-page-in-wordpress