What is Ethernet over Coax and how does it make my WiFi better?

GCA-7000: 2000Mbps G.hn Ethernet over Coax Adapter - Comtrend

ScreenBeam Bonded MoCA 2.0 Network Adapter for High Speed Internet

Ethernet vs Wi-Fi: Is Wiring your Network Worth It?

First Home- Network and Coax Installation

Motorola MM1025 MoCA 2.5 Adapter with 2.5 Gbps Ethernet - Motorola

Easily Relocate the Router with an Ethernet over Coax Adapter

PoE & IP OVER COAX CONVERTER - POE IP Over Coax converter can be used to upgrade analog system to IP surveillance system while using existing coaxial

PoE + Ethernet over Coax (EOC) Converter

StarLink

SPT IP LAN and Analog Over Coax Transceiver Extender in Black 15

How to Set Up a Coax (MoCA) Network : 7 Steps - Instructables

Installation Guide Ethernet over Coax Adapter Bridge Home Network

DECA Ethernet to Coax Adapter - VERY cheap way to hard wire Tablo

What is Ethernet over Coax and how does it make my WiFi better?