It just doesn't work. It simply turns to disabled. But 40Mhz works only.
Set country code first.
I did that. But wait now kinda works? Let me test it.
ax54 works ideally, 2min wait at boot for 5ghz
config wifi-device 'radio1'
option type 'mac80211'
option path 'loongline'
option channel '116'
option channels '36 52 100 116'
option band '5g'
option htmode 'HE80'
option country 'BE'
option cell_density '1'
option background_radar '1'
option he_bss_color '64'