How to convert pyusd to usd?

I'm curious about the process of converting pyusd to USD. Could you please elaborate on the steps involved? I understand that pyusd is a digital asset, while USD is a traditional fiat currency. Does this conversion require any special platforms or intermediaries? Also, what are the fees or charges associated with such a conversion? I'm particularly interested in knowing if there are any security considerations or risks involved in the process. Additionally, is there a specific time frame or duration for the conversion to complete? I'd appreciate a detailed explanation of the entire process from start to finish.