News TP-Link and Walmart tout first sub-$100 Wi-Fi 7 router, but it lacks speedy 6 GHz band

This is as close as you can get to a scam without it really being one.

The key and most important feature of wifi7 is the use of 320mhz radio band. That can only be used on 6ghz.
The router might support 160mhz radio bands on 5ghz but many end devices do not because of all the issue of avoiding restricted bands used by things like weather radar. So it is unlikely it will be able to really use this which means it is no better than wifi5. Again the 6ghz band is really needed for anything attempting to use more than 80mhz radio bands.

Next QAM1024 has issue unless you are close to the router. Although there is not much testing available I am going to bet qam4096 has even more issues. It likely does not work outside the room with the router.

The bonding of the 2.4 and 5g radio bands is not supported by many of the wifi7 devices on the market. It seems this is extremely sensitive to interference and it will pretty much overlap every neighbors around so you have many sources of interference.

They are targeting the customers who are lucky to know that wifi 7 has a bigger number than wifi 6. They have no clue about things like radio bands to know they are being taken advantage of.
 
Your devices can connect on the 2.4 GHz or 5 GHz bands but not the newer and speedier 6 GHz band.

If so, can someone explain to me how I can...

reap the benefits of Wi-Fi 7’s Multi-Link Operation (MLO) for reduced network congestion

...without being able to connect to the less congested band?