systemd network-online target does not take into account auto interfaces

[rmja]

On a default ubuntu install with an attached local hetzner cloud interface, the systemd network-online target does not take into account the auto created interfaces according to https://docs.hetzner.com/cloud/networks/server-configuration/

For example: journalctl -u systemd-networkd-wait-online.service displays "managing: eth0". It does not include e.g. enp7s0.
If one configures netplan manually and unstalls hc-utils, then the network-online target automatically includes the interface for the network as desired.