Besides the obvious advantage of enabling Bluetooth capabilities for your Home Assistant interface, an ESP32-powered proxy allows you to control and automate smart devices over a large area.

I built an ESP32-powered presence sensor using only Bluetooth, here's how it works BLE transmitter settings in the Home Assistant app on Android esp32-presence-sensor ...

That’s exactly the goal of the Meshtastic project, which aims to take off-the-shelf ESP32 LoRa development boards and turn them into affordable mesh network communicators.