It looks like this is caused by the version of python3-apt you have installed, which is python3-apt 2.2.1pop0~1628521831~21.10~5dbe6cf according to ./var/lib/apt-clone/installed.pkgs from VarLogDistupgradeAptclonesystemstate.tar.gz. This version of the package is from apt.pop-os.org, not the Ubuntu archive.
Please try using the tool ppa-purge to remove the PPA packages, and try the upgrade again. ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969161 Title: Can't upgrade to jammy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1969161/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs