Would be possible to implement similar feature like ESP home has ?
I think it would be weary useful since many of us have many Android devices running ESP home app like Dashboards or control panels. if I am not mistaken even iPads work like some sort of relays in HomeKit infrastructure.
you will want to submit a feature request to HA core first so they can add support so the android app can support it.
for now the android app has a BLE transmitter to send a beacon and in the latest beta there is a beacon monitor to scan for beacons. The 2 can be used together to do room presence.