In need of reliable presence sensors.
I have an FP2 and an FP300, both are not that great.
The FP2 was stuck at reporting occupation after just a short uptime and a few weeks afterwards went fully unavailable (I was to lazy to bother accessing and resetting/replugging it). Now its entity is no longer being provided by the homekit_controller integration. Still plugged in, didn't do anything to it.
The FP300 worked ok-ish for a few weeks but currently is also unavailable (and I again am too lazy to go to it and cycle the battery, I mounted them out of reach).
The FP300 also didn't really trigger that reliably, and stopped triggering if you stood still enough...
The FP300 is paired via Matter, not ZigBee. So I will have to give that a try later. My ZigBee network is pretty tiny though, I barely have any devices set up via ZB in HA. Unless my Hue bulbs count, but they are connected to the Hue hub. Most of my stuff is either Hue or Matter over Thread.