https://netplan.io/
Backend-agnostic network configuration in YAML.
canonical netplan
https://mail-archive.com/search?l=ubuntu-bugs@lists.ubuntu.com&q=subject:%22%5C%5BBug+2093164%5C%5D+Re%5C%3A+initramfs%5C-tools+generates+deprecated+netplan+config+gateway4+and+gateway6%22&o=newest&f=1
subjectbuginitramfstoolsdeprecated
https://www.tecmint.com/netplan-bridge-network-interfaces/
In this article, we will discuss how to bridge two interfaces using Netplan, explaining both DHCP and static IP configurations.
bridge networkinterfacesnetplanlinux