It isn't. Batching means combining multiple logical operations in a single physical request. HTTP/2 muxes N logical requests over 1 physical connection, which

It isn't. Batching means combining multiple logical operations in a single physical request. HTTP/2 muxes N logical requests over 1 physical connection, which is good, but the application will still process requests independently. You always want to batch workloads into single requests if you can, HTTP/2 doesn't change this.