Fedora 39 currently has the same default wallpaper as Fedora 38. The f39-backgrounds* packages do not currently exist.
Having a unique default background is one of our basic release criteria: https://fedoraproject.org/wiki/Basic_Release_Criteria#Desktop_background
F39's default wallpaper is the same as F38's.
F39 has a unique default wallpaper.
*** This bug has been marked as a duplicate of bug 2230720 ***