Update HomeKit when removing a device
I recently removed a Smart Radiator Thermostat from my home and removed it from the Tado app, however it is still showing in HomeKit.
Having spoken to support the only way to fix this is to remove the Internet gateway from HomeKit, do a factory reset on it, and re-add it to HomeKit. This will however have the side effect of removing all my Tado devices from the HomeKit scenes and shortcuts I have referenced them in.
My suggested improvement is to have the Tado app remove a device from HomeKit at the same time it is removed from the Tado app, or have an option to 'resync' the Tado devices with HomeKit.