My house is wired for ethernet, and I don't use all the jacks. Best practice is probably run two lines to two opposite walls to most rooms. But you'd expect to

My house is wired for ethernet, and I don't use all the jacks. Best practice is probably run two lines to two opposite walls to most rooms. But you'd expect to only really use one of those for most rooms. It's just nice to have options for placing wired devices (which is why you want wired to opposite walls) and to have a spare in case it fails. 1gbps at low latency and low jitter is table stakes for wired networking, but pretty difficult for wifi (regardless of the sticker bandwidths). Wifi 7 will likely do a lot better than wifi 6 on well equiped clients and access points because of aggregation across frequencies, but it's still going to be not entirely consistent, and it still won't hold a candle to 10g-baseT which isn't too expensive if you only need a few ports and you shop well on ebay. If you do fiber runs, there's lots of used stuff much faster than 10g for not much more. 40gbe seems to have had a short lifetime in enterprise so there's a lot of decommisioned hardware out there, if you've got fiber to run it on.