"Wireless Fidelity"
Let’s start with the basics. Wi-Fi, short for Wireless Fidelity, is a brand name given to a communication standard decided by the Institute of Electrical and Electronics Engineers (IEEE).
Source: https://www.slashgear.com/1026134/wi-fi-7-everything-we-know-so-far/
Commentary: Slashgear gets Wi-Fi marketing wrong and continues propagating the mythological beginning of high-fidelity Wi-Fi.