/etc/netplan/01-network-manager-all.yaml is legacy stuff, installed by livecd-rootfs. Nowadays, it moved to /usr/lib/netplan/00-network-manager-all.yaml, provided by the "ubuntu-settings" package, as mentioned by Danilo.
So this bug is mostly about the installer side. I'm closing the Netplan bug task.
/etc/netplan/ 01-network- manager- all.yaml is legacy stuff, installed by livecd-rootfs. Nowadays, it moved to /usr/lib/ netplan/ 00-network- manager- all.yaml, provided by the "ubuntu-settings" package, as mentioned by Danilo.
So this bug is mostly about the installer side. I'm closing the Netplan bug task.