What is the point of PayPal USD?

As a finance and cryptocurrency practitioner, I often encounter various payment methods and currencies. One such currency is PayPal USD. But I must confess, I'm somewhat perplexed by its purpose. Could you elaborate on what exactly PayPal USD aims to achieve? Is it a mere digital representation of the US dollar, or does it possess unique functionalities and advantages? I'm particularly interested in how it differs from traditional US dollar transactions and whether it offers any added convenience or security for its users. Additionally, I'd like to know if PayPal USD has any relevance or potential impact in the cryptocurrency landscape. Your insights would be greatly appreciated.