First of all, I deeply apologize for being so late in my answer. Good and not-so-good reasons contributed. As you did not close this issue, I will answer anyway.
Of course, I am almost sure you are right - I did not notice this directory /var/cache/apt/archives. I did not learn humility enough before shouting - me stupid. Thank you for your patience.
I did not analyze the attached dist-upgrade directory, but I am pretty sure it will confirm your assumption.
Hello,
First of all, I deeply apologize for being so late in my answer. Good and not-so-good reasons contributed. As you did not close this issue, I will answer anyway.
Of course, I am almost sure you are right - I did not notice this directory /var/cache/ apt/archives. I did not learn humility enough before shouting - me stupid. Thank you for your patience.
I did not analyze the attached dist-upgrade directory, but I am pretty sure it will confirm your assumption.
Best regards
R. Grasso