Description of problem:

The GNOME Software application on RHEL9 does not install any RPM packages from any repository except flatpaks from the Flathub repository.

Version-Release number of selected component (if applicable):

gnome-software-41.4-1.el9.x86_64

How reproducible:

100%

Steps to Reproduce:

1. Open GNOME Software center find an application available as an RPM package from any repository e.g. EPEL-9.

2. Click on the install button.

3. An error will appear on the screen with the message: "Unable to install <package name> as not supported". The package will not be installed.

Actual results:

The selected package is not installed.

Expected results:

The selected package is installed.

Additional info:

EPEL-9 and the Flathub repositories have been added to the system. Installation using dnf for the same RPM package works properly. Flathubs can be installed by both the GNOME Software application and by using the flatpak command.