edit: Installing qgis with qgis-repos enabled (https://qgis.org/ubuntu-ltr and https://qgis.org/ubuntu ) worked. So I guess something within the package inside ubuntu repos is broken.
edit: /qgis.org/ ubuntu- ltr and https:/ /qgis.org/ ubuntu ) worked. So I guess something within the package inside ubuntu repos is broken.
Installing qgis with qgis-repos enabled (https:/