I love how Linux networking is wildly different from distro to distro. And most distros have a new way and an old way, and sometimes an even older way that is still supported. And there are about a hundred thousand terribly written blog posts about how you can change networking in Linux, absolutely zero of which ever seem to match the distro, version, and state of reality you are in exactly.
Linux is a fucking dumpster fire, and I wish I never had to use it.
Edit: Oh that is cute, add a new network interface, old network interface settings are now GONE.