"Throw away your Ethernet cables* because MediaTek says Wi-Fi 7 will replace them"
Bullshit bullshit bullshit.
Don't get me wrong, WiFi has its uses. But fundamentally it still solves one, and ONLY one problem - NOT being able to use a cable.
In every other way it is nothing but problems compared to a cable.
How many WiFi channels do you need to get the same throughput as a good wired network with proper distribution type switching fabric?
Then there is security - doesn't matter how much encryption you use, with WiFi you are still broadcasting your data. Anyone can (potentially) listen to it and grab it.
At one of my sites one of my access points can see 40+ other WiFi NETWORKS!!!! None of which are ours.
The higher the data rate with radio, the more subsceptible it is to anything - building layout and construction, furniture, even people walking around. That is just the way radio is.
And it is awful lot of (complex) technology just to try and replace a length of copper.