Wi-Fi Alliance vs. IEEE
Wi-Fi is a trademarked term owned by the Wi-Fi Alliance. Wi-Fi is a wireless networking technology standard that allows devices to communicate over a variety of distances using radio waves.
The Institute of Electrical and Electronics Engineers (IEEE) sets technical standards for all types of wireless technology; however, 802.11 focuses on wireless networking technology standards. The current standard is 802.11ax-2021, which is based on the use of the 6 GHz frequency band for commercial wireless networking. There actually is no 802.11x!
Devices that are certified as Wi-Fi 6E are adherent to the 802.11ax-2021 standard which mainly covers the use of the 6 GHz frequency band for commercial wireless networking. Each standard that has been released over the past few decades mark large achievements in Wi-Fi technology and faster speeds.

