I ended up buying the same _TZE284_aao3yzhs, and turns out three of them join as “unknown manufacturer” with nothing but the Firmware sensor, and the fourth shows its sensors but without any information.
I was naive thinking it would work the same way as _TZE200_wqashyqo (actually, I was praying they would be the same device, they’re so visually similar).
There’s a reported bug, not sure if it could be useful on your scenario as well: [BUG] Entities for device _TZE284_aao3yzhs do not update - always showing as unavailable · Issue #3660 · zigpy/zha-device-handlers · GitHub