Promote IPv6 address with Android NSD instead of IPv4 address

Question

I successfully registered a service in my App which I can see on my Generic Linux device using the command line tool avahi-browse. What I wonder is the following: why does avahi-browse does show the IPv4 address of my Android but not the IPv6 (link local) address? Both sections are printed on the screen.

How do I make the service discovery promote the IPv6 address. Please see my code snippet below:

try {
    val serviceInfo = NsdServiceInfo().apply {
        // host = InetAddress.getByName("fe80::1234/64") // TODO: This fails
        serviceName = TAG
        serviceType = mServiceType
        setPort(port)
    }
...