Which packages are installed on Ubuntu desktop by default? [duplicate]

Is there a list of packages that are installed on a fresh install?

I know, there is the other question How do I list the default installed packages? But that doesn't show, what will be the output of

dpkg --get-selections | grep -v deinstall | cut -f 1

right after a fresh install of Ubuntu desktop?

I would like to compare the resulting remaining list with the packages I have installed at the moment, so I can find out, what changed on the system since install.

There is a full list in the manifest file of each distribution at http://releases.ubuntu.com

To get just the list use

wget http://releases.ubuntu.com/utopic/ubuntu-14.10-desktop-amd64.manifest \
-q -O - | cut -f 1 

Note that not all these packages stay installed. On the CD images, you'll also find a file called /capsper/filesystem.manifest-remove which is a list of things to remove after installation. (here is this file from Ubuntu 17.10)

related: check if all default packages are installed from the Ubuntu manifest