Dnf is the default high-level package manager in the Red Hat family of distributions, which includes Fedora, Red Hat Enterprise Linux and all its clones. It is the successor of Yum, and indeed using the yum command in recent versions of the distributions mentioned above, is just another way to call dnf. Dnf has a lot of nice features and plugins which help us install, update and remove software packaged in the “.rpm” format.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-work-with-dnf-package-groups