Linux or Windows for networking

Neither Linux nor Windows is "more suitable for networking" as any almost any computer is capable of being networked in some trend, and if they all use the same protocols, they can communicate equally. The reason one operating system might be preferred in a situation over another depends on its ability to handle the data it gets over the network, not the act of being networked itself. Linux servers often have better performance for things like databases and file storage, so it is easier to provide the requested data faster. They usually also have more robust protections against DDoS attacks. It doesn't mean that it is easier to network, that it can utilize more bandwidth, or that it provides features that couldn't necessarily be implemented on another system.