Most are fairly short and routed to the other side. Like, my husband is running some virtual machine on the server and it’s wired to the TV on the other side of the wall.
Our Ethernet is a bit more complicated, but it all routes to the crawl space downstairs where the network stuff is located. It was kind of a pain and we had to use these rods and tubes to guide it through. I don’t really ever want to do that again. But everything in our house is Ethernet, except for the all portable devices.