The reason i found this out is because my samba shares were taking too long to be available in the network after a boot (around 2 minutes). Chatgpt actually helped me to diagnose that the reason was the “systemd-networkd-wait-online” service of networkd was timing out due to my network connections not being managed by the “networkd” service which is also enabled.
The solution was to disable both “networkd” and “networkd-wait-online” services as the system is already utilizing “networkmanager” of KDE Plasma to manage the network devices and connections.
This resolved my issues and connections became available right after the boot.
So maybe for future releases of Manjaro ARM (KDE Plasma), developers might want to disable the networkd and networkd-wait-online services from the get go.