Just setting `deltarpm` to False in dnf.conf do the same. Just
saying.
The deltarpm option has low discoverability. The information is available,
but the discovery chain is too long and not explicit enough.
The main configuration file /etc/dnf/dnf.conf does not list
each option, its default value, and perhaps a short comment.
The main configuration file does not reference "# See 'man 5
dnf.conf'."