

Plenty of controllers do. They can be used for multiplayer in place of a headset. Some games will also use them for non-world audio, like an audio log or a mission update. You can also use them in conjunction with haptics for communicating menu interaction. A different timbre of click for allowed vs disallowed, for example.






Knowing how.
All routers are just Linux computers managing slightly better than average network cards. (Home routers, obviously. Beefy carrier hardware is different).
A basic setup is essentially installing Linux and then running a handful of commands for packet forwarding. The figuring out how to do it without wifi crashing will take longer because that software is wonky.