Your logs show that you have packages from foreign sources or PPAs installed, and they block the upgrade.
What is the output of the command apt-cache policy python3-qgis python-gdal grass-core obs-studio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1893974 Title: Distro upgrade bug3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1893974/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
