How do I buy pyusd?

Could you please elaborate on the process of purchasing PYUSD? As a cryptocurrency enthusiast, I'm always keen on discovering new opportunities. I'm curious to know the specific steps I should take to acquire PYUSD, given its unique characteristics. Are there any specific exchanges or platforms that offer PYUSD trading pairs? Also, are there any prerequisites I need to fulfill before initiating the purchase? Additionally, what are the transaction fees and estimated processing times associated with buying PYUSD? Your insights would be greatly appreciated.