For those who are still not convinced, here is a comparison:
$ toolbox create -d fedora -r 37 && toolbox enter
$ sudo time dnf upgrade -y
26.79user 3.46system 0:49.09elapsed 61%CPU (0avgtext+0avgdata
489304maxresident)k
47400inputs+1243320outputs (266major+377843minor)pagefaults 0swaps
$ toolbox create -d fedora -r 37 && toolbox enter
$ sudo dnf copr enable rpmsoftwaremanagement/dnf5-unstable
$ sudo dnf install dnf5 -y
$ sudo time dnf5 upgrade -y
11.55user 3.40system 0:33.98elapsed 44%CPU (0avgtext+0avgdata
199056maxresident)k
72inputs+1203072outputs (280major+191432minor)pagefaults 0swaps
DNF5 is ridiculously fast. The new text output using the C++ fmt
library is also a bonus.