Hi Terry,
Probably there is some misunderstanding about the POS.
POS is point of sale - a system for sellers, not for users. So it's not a system for payment methods like PayPal or Stripe. And you cannot use POS template for the online store.
Difference:
Customer) If a customer is shopping at an online store, they are on their computer where they choose a PayPal or Stripe payment method, log in (still on their computer) and make a payment.
POS) POS - point of sale, is a program for the retailer, running on the retailer's computer. It is used in brick-and-mortar stores. It is the vendor's computer, so it is not possible for the user to log in and make a payment via PayPal or Stripe on retailer's computer.
Here is the video about POS https://www.youtube.com/watch?v=YSZQgGxn8DQ
If you are running POS, not online shop, then you will need the plugins that will work with POS.
Kind regards,
Dmitrijs