The kernel version 5.8.0-38.43 is indeed marked as manually installed, though I never installed a kernel manually, only installed new kernels during apt full-upgrade. However, the problem is now solved. Thank you so much for your time looking at this, have a great time!
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1913571 Title: apt autoremove does not remove old kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1913571/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs