I used a Netgear C6220 combination cable modem/router for years without it causing 'noticeable' physical discomfort after I turned off 5ghz and used only 2.4ghz while sitting eight to ten feet away. I switched to fiber recently so had to change to a different unit. I've purchased numerous models such as:
Netgear R6260 (Mediatek - wifi 5 - two antennas)
Netgear R6400v2 (Broadcom - wifi 5 - three antennas)
Netgear RAX 10 (Broadcom - Wifi 6 - three antennas)
Summary: The R6260 with two antennas and 5ghz turned off is pretty similar to the original C6220 unit in terms of discomfort, which also had two antennas. The R6400v2 and RAX10 are not. Both of those hit you with this constant low-intensity, ADHD-feeling, brain fog, difficult to concentrate, tense feeling, inability to focus or relax, and just overall unpleasant thing going on.
Before anyone claims it's impossible for Wifi/EMF to do things like this, there's a reason when wifi routers first came out they said directly on the box you're supposed to sit at least five feet away from them (inverse square falloff). The original C6220 range was also pretty short and didn't reach the end of the living room in my small to medium sized house. These other units seem to go much further in range where you could probably use them outside standing in the street.
If I turn down the transmit power on the RAX10 unit (w/ 3 antennas) from 100% to 25%, you can notice the discomfort decrease, but it's still orders of magnitude higher than the C6220 (2 antennas) or R6260 (2 antennas). From what I've read, each antenna on the R6400v2 and RAX10 is dual-use and outputs both 2.4ghz and 5ghz (but not sure)? If you were using only the 2.4ghz band and trying to decrease Wifi irritancy, which of the antennas would you attempt to unplug? One in the middle? The two on the outside? I'm not sure which ones transmit 2.4ghz.