What is the difference between Pepe and Pepe 2?

Could you please elaborate on the distinctions between Pepe and Pepe 2? I'm genuinely curious to know the nuances in their characteristics, functionalities, or perhaps even their origins. Is Pepe 2 a newer version or iteration of Pepe, or are they two distinct entities? In what aspects do they differ? Could you possibly compare them in terms of popularity, usage, or maybe even their cultural significance? I'm eager to gain a deeper understanding of these two, so any insights you could provide would be greatly appreciated.