Where/how did you disable it?
Doesn't seem to be an option for it on my router (TP-Link AX1800). Is there a way to disable it in the adapter settings in Libreelec?
It’s a router setting. It’s possible it might be here https://www.tp-link.com/uk/support/faq/2097/.
I also need to test this more when I have time. I think it might actually be 802.11k that was doing it. I had some logs about unsportsmanlike frames on the raspberry pi that I think were related to Neighbor Reports, but I’m not certain.