Connect Bluetooth Remote to Home Assistant

Hi everyone, is it possible using the built-in bluetooth, or using the ESP32 BT Proxy to connect to a bluetooth remote?

If bluetooth remotes are not possible, does anyone got it with Game Controller, Keyboards or other BT devices?

I know that is possible with zigbee remote controls, but is it possible with bluetooth?

There is an approach that works here [Tutorial] How to use Bluetooth Media Button for Sonos