Came across this in my adventures and wanted to share
Definitely used a diagram like this when setting up my house. In effect there are only three independent 2.4GHz WiFi bands, and since I have 4 Access points across my house, I am essentially using all of them. This means that I had to fit my multiple zigbee networks in the gaps between in order to not get drowned out. Fortunately, I don’t use Bluetooth or BLE except for the odd set of headphones or connecting to an amplifier that I don’t have a castable device linked to.