latency
> Wi-Fi 6 promises lower latency – as low as 10 ms;
I hopeful that's 10us (micro-seconds) not si milliseconds, the later would be quite a bit slower then 802.11ac is now.
a superficial reading of published materials suggests 802.11ac may actually have a lower guard interval and lower symbol time while transmiting but has fewer bits per symbol.
https://www.techspot.com/article/1769-wi-fi-6-explained/