Nope (are you trolling?), I actually know ‘all this stuff’ quite well (thanks to my OCD), as my stats summary here on this community forum should hopefully show. I’m been a contributing member for many years now, and I have actively contributed to both ZHA (including zigpy) and Zigbee2MQTT projects. While I do not many code contributions to ZHA and Zigbee2MQTT, believe that I might be the largest contributor to the ZHA integration documentation → https://github.com/home-assistant/home-assistant.io/blob/6e0591840026bdafb108bed1b98e280f1edd3b6d/source/_integrations/zha.markdown and think I’m also in the top-10 list of contributors to the Zigbee2MQTT documentation as well → GitHub - Koenkk/zigbee2mqtt.io: 📘 Zigbee2mqtt documentation
This is why I put together that comprehensive guide in a thread about working around the biggest issues of Zigee as all that information is way too compact to fit into normal end-user documentation → https://community.home-assistant.io/t/guide-for-zigbee-interference-avoidance-and-network-range-coverage-optimization/515752 (though some of the essences of that I have managed to summarize and gotten into the official ZHA and Zigbee2MQTT documentation, which is hopefully enough work around some of the most common peculiarities which many Zigbee users will probably stumble into sooner or later).