This image uses Netplan to configure the network manager which is "Networkmanager".
Setting the IP address using ifconfig will NOT be applied persistently, and can/will be overridden periodically by Networkmanager This manages network conflicts for controlling IP networks like Ethernet and WiFi. Network Manger has several command line utilities
nmcli to get current network status
nmui is a termnial user interface to modify connections
set static IP/ DHCP
set DNS
connect to a wifi network
Examples are provided in the quickstart and typical interface usage sections.
For more information please refer to online documentation regarding Netplan/Network manager.
You can follow this tutorial below in order to set Static IP with NavQ+ :
