The 'dnf update'* part only runs sometimes, depending on your cache expiry setting in dnf.conf. If you run a single-package 'dnf install' a bunch of times in th

The 'dnf update'* part only runs sometimes, depending on your cache expiry setting in dnf.conf. If you run a single-package 'dnf install' a bunch of times in the same hour or two, then only the first one is slow while it runs the 'dnf update'* process. Actually it just updates the metadata - it won't install new versions of packages. It is like the apt-get update, but if you actually run 'dnf update' that's equivalent to apt's update and* upgrade.