Yep, these are still not perfect, but they are improving quickly..
BTW, there are some Zigbee mmWave sensors that are available locally in the US and that Hubitat may want to look at and provide a native support in the future :
Linptech : [BETA] Linptech/Moes 24Ghz Presence Sensor ES1 ( TS0225 _TZ3218_awarhusb ) drivers
Coming soon: SONOFF SONOFF Zigbee Human Presence Sensor | SNZB-06P
,,,, and of course ,.. we are all waiting for Hubitat Matter support, that will bring even more mmWave sensors to the platform,
