I just tested the latest version of this package in testing repos and it works for me. Tested in znver1 VM and x86_64 hardware systems. All packages install. Was able in both to add a “New Album” to Albums>Pictures. I think that was the original issue here.
I pushed these digikam packages to main/updates repository for all users.
The fixed digikam packages are:
lib64digikamdatabase7.0.0-7.0.0-2
lib64digikamcore7.0.0-7.0.0-2
digikam-7.0.0-2
lib64digikamgui7.0.0-7.0.0-2
showfoto-7.0.0-2