this shits me so much. In ye old times in macos you could make a new "service" for a network interface, then assign a static ip or subnet to that interface. New macos versions still allow you to create the service, but the network panel redesign punts you wifi settings of the main adapter, so you can no longer set the IP address. So ( at least for wifi) the ability of add a new service is effectively useless. The people making these settings panes are so disconnected from what they do now.