On Thu, Oct 27, 2022 at 2:05 PM ada per <adaper3@gmail.com> wrote:
i did that aswell  still:

dnf downgrade ansible-core
Last metadata expiration check: 0:44:39 ago on Thu 27 Oct 2022 14:20:00 EEST.
Packages for argument ansible-core available, but not installed.
Error: No packages marked for downgrade.


Strange
This message should be printed when you don't have the package installed.
For example on my Fedora 36 system I have pcp-conf package that is not installed

 $ sudo dnf downgrade pcp-conf
Last metadata expiration check: 0:07:36 ago on Thu 27 Oct 2022 02:19:55 PM CEST.
Packages for argument pcp-conf available, but not installed.
Error: No packages marked for downgrade.

While I can install it and I will have it at the latest version:
$ sudo dnf install pcp-conf


====================================================================================================
 Package                Architecture         Version                    Repository             Size
====================================================================================================
Installing:
 pcp-conf               x86_64               6.0.0-1.fc36               updates                28 k

And then I can downgrade it, even if the lower version was not ever installed before on my system

$ sudo dnf downgrade pcp-conf
Last metadata expiration check: 0:01:24 ago on Thu 27 Oct 2022 02:19:55 PM CEST.
Dependencies resolved.
====================================================================================================
 Package                Architecture         Version                     Repository            Size
====================================================================================================
Downgrading:
 pcp-conf               x86_64               5.3.6-2.fc36                fedora                28 k

what you get with the command

rpm -qa | grep ansible
?