I came across this blog post that should make you feel better.
firasshaari.com
Bottom line is that found for the tested set of dual-band dipoles, performance was about the same as for 5 GHz up to 6.778 GHz (~ Wi-Fi 6E channel 165). For the end of the 6 GHz band, he found ~ 6 dB loss.
So you have plenty of channels to use and not suffer noticeable signal loss.
Dual Band ANT performance in The 6GHz Band – WiFi Lodestar
firasshaari.com
Bottom line is that found for the tested set of dual-band dipoles, performance was about the same as for 5 GHz up to 6.778 GHz (~ Wi-Fi 6E channel 165). For the end of the 6 GHz band, he found ~ 6 dB loss.
So you have plenty of channels to use and not suffer noticeable signal loss.
