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.
Not sure why this happens to you. I have HA with several dozens WiFi devices and I have only 2 devices (one relay, one sensor) that disconnect regularly, they have both poor WiFi signal, one in a basement and one far from the AP. Almost all are on 2.4 GHz, not by choice, but they work well.