Homeplugs (ethernet over power) are fine for some things, but they add so much latency to the network.
Wired is so much better.
Devices like laptops, tablets and phones, usually do not have Ethernet built in, or are too mobile to make it practical to use
What I did in the living room was plug a USB-C dock with a 2.5 Gbit Ethernet adapter into the wall outlet with a 2 meter USB-C 3.x cable.
So I sit down in the living room and plug in my laptop/phone in to charge when I'm using it and they automatically get a 2.5 Gbit network connection. Even iOS natively supports the common Realtek 2.5 Gbit chipset.