Single all in one modem/router/access points are popular because they are incredibly easy go set up and that is about it. The only people who don't run Etherne

Single all in one modem/router/access points are popular because they are incredibly easy go set up and that is about it. The only people who don't run Ethernet cable are those who are too lazy to bother. The second any sort of performance becomes important you will need to find dedicated devices with Ethernet running inbetween. My parent's house is 100% wireless however I had to run extended lengths of Cat 5e to set up multiple wireless access points. We have multiple 4k TVs on different sides of the house. There was no way we could keep decent speeds and wireless coverage without running cable. Even for my Android phone. I will occaisonally use a wired Ethernet connection to speed up downloads.