Probably not, but small businesses on the net would, perhaps.
On the platform that I had a shop, if a customer used a credit card, I was charged a % for the sale, or if the customer used paypal, I was charged their % fee... Plus I had to pay a percentage to the platform sponsoring my shop.
And if a customer paid by check or money order, I paid no fee....which seldom happened.
My initial mark up needed on the retail price of my product to achieve my planned profit, included my fees for credit card companies, paypal, and what fees I had to pay the platform.... When one of those costs of doing business goes down, then my initial retail mark up needed to profit goes down....it is generally passed on to the consumer by me.
However, if I had a hot item, retailing quite well at the higher price, I wouldn't pass the savings on to the consumer, and use this hot item product's increased profit margin, to help pay for the markdowns of product that was not selling well...
Basically, it's a hit or miss for the savings to be passed along to the consumer....
My shop is a handmade created product, so nothing truly competes when you have original designs and creations, but there are still market stresses on how much a consumer will pay.