What network is WETH on?

Could you please clarify which blockchain network the Wrapped Ether (WETH) token operates on? I'm interested in understanding the underlying infrastructure that supports this cryptocurrency. Additionally, is there any specific reason why WETH was chosen to be deployed on that particular network? Could you elaborate on the advantages or benefits of using this network for WETH transactions? Finally, are there any compatibility issues or limitations to be aware of when interacting with WETH on this network? Thank you for your insights.