How to find PS5 subnet mask?

Excuse me, I'm not a network technician by trade, but I'm trying to set up my PlayStation 5 console on my home network. Could you possibly guide me through the process of finding the subnet mask for my network? I've heard it's an important step in ensuring smooth connectivity, but I'm not sure how to proceed. Should I be looking for this information in my router's settings? Or is there a way to retrieve it directly from the PS5's network configuration? Any step-by-step instructions you could provide would be greatly appreciated.