The 2.4ghz flavor of Zigbee specifically operates between 2400 – 2483.5 MHz.
Someone else on this thread said the channel width looked too big for it to be Zigbee, here’s a visual representation of what that means: https://imgur.com/a/jHVMRRd
I’ve used the WiFi Analyzer and WiFi Man apps for years and I’ve never seen either of them display any Zigbee stuff. It’s possible that there is co-channel interference with 802.11 stuff. Zigbee uses the 802.15.4 protocol though. I’d imagine that either of the apps you mentioned would need to be specifically written to look for that protocol, and run on a chipset that supports 802.15.4 communication.
If you can get a pcap of the traffic you’re seeing that you think is Zigbee, then run it through Wireshark and it should be able to tell you what protocol you’re seeing.
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