Wifi 6E already does that, I get about 940 Mbps with my phone on my 6GHz network. That is maybe 10 Mbps less than I get wired.
If you have a non-congested area, 6e is just as fast as 7. 7 just brings a wider channel width and the ability to hop between 6ghz and 5ghz.
I think we are quite a long time from 6E becoming congested. The equpiment is just too expensive right now (nevermind the price of Wifi 7 equipment). In my pretty densely populated area I have zero other 6GHz networks visible from my place.
I don’t think we’ll ever hit 6ghz congestion because it just doesn’t go very far.
In downtown areas 2.4ghz wifi is basically useless, but 5ghz is still pretty serviceable thanks to it’s lower range and more channels. 6ghz is just another 2.4 to 5ghz jump, but now we’re getting down to single room levels of range.