Migrating to new HA Host and using existing ESPHome devices

I am in the process of creating a new HA instance. My existing setup is still running and I want to migrate as much as possible to the new setup.

Can I share some of my existing ESPHome devices such as Bluetooth Proxy devices with the new setup? I want the devices to function on two instances of HA.

I don’t think it’s possible because each ESPHome device needs to authenticate with HA, so I doubt the device can connect with two instances.