In Gnome software > Updates:

Current behavior: clicking on a package shows the package description (there is
no way of knowing what has changed).

Expected behavior: it should show the change log (since the last version).

The logic of this:
In the updates lists, changes information is more useful than the package
description.

Fedora 36 does this correctly. (We always do updates with gnome software on
Fedora, because it is the easy convenient way of seeing what has changed
between versions. It shows the reason of the update).

Thanks.