If the System Control uses an ESP32-C6 (because of Wifi), it can be used as a border gateway. We can use it to receive FOTA and via Thread we can configure the mesh network. And in the future, it’s possible to integrate Matter.

I need to do more research for Thread.

Maybe the system could also use Matter application layer. To learn about it for ESP32 Espressif offers a multipart webinar (from 2023).