You can install extra nodes that adds many flavours of functionality.
Node RED is packaged with its core nodes, but one can install K's of other nodes to bring new functionality to it's base configuration.
I think the [node-red-contrib-noble-bluetooth] nodes are good for controlling bluetooth low energy.
But à priori not for controlling the bluetooth devices which are actually within a bluetooth mesh network. A new specification of bluetooth recently released, but promised to a great future.
I say à priori cause installing this palette made my flow crashed. I am running NR under Docker, that might explain why...