I have a cluster of 4 RPi Zero Ws and network reliability is not great. Since it is for the chaos, it’s fine, but it’s very common to have a node be offline at any given time.
Even worse, the control plane is exposed, but for something that runs 3 Hercules mainframe emulation and two Altairs with MP/M, it’s fine.
I have a bunch of HA wifi connected sensors, I see them drop off and reconnect all the time it is most annoying.