@Sebrichter Not sure if you went and read the document on reference i sent you, and it is all in theory, so here is the extract for you until you get to read.
UPDATE March 2022: When Wi-Fi 6 CAN deliver the goods: If you have a brand new Wi-Fi 6
client device and a brand new Wi-Fi 6 router and are using both in the same room (and both devices
are very close to each other) there is a high likelihood that the two devices will negotiate an initial 160
MHz channel width (for non-Apple devices only). Throughput can be as high as 80% of the 2401 Mbps
PHY speed (or around 1900 Mbps) -- which is very nice!
device and router are very close to each other (in my testing, four feet away) -- and once you start
adding distance or walls, the two Wi-Fi 6 devices will 'slow down' significantly and communicate with
each other at much closer to Wi-Fi 5 speeds.
Technically, Wi-Fi 5 also supported 160 MHz channels, but it was rare to see a battery
powered client device support 160 MHz channels. For some reason, that appears to have
changed in Wi-Fi 6, where support for 160 MHz channels (even in battery powered client
devices) now appears very common (but not for Apple devices).
