Especially frightening when you look at how much everyday stuff is actually in the Universe repo in Ubuntu. Without Ubuntu Pro, your LTS system can sit in a very insecure state for a long time as patching Universe is "best effort" from the community.

Most popular GUI stuff is from universe, as are quite a few dev tools. Some examples: Gimp, Inkscape, pip (and a ton of python packages), most of gnome, a big chunk of KDE, htop, mariadb, etc.

See for yourself grep -h "^Package:" /var/lib/apt/lists/_universe__Packages | awk '{print $2}' | sort -u

Or to see only what you have installed from Universe: comm -12 <(dpkg-query -f '${Package}\n' -W | sort) <(grep -h "^Package:" /var/lib/apt/lists/_universe__Packages | awk '{print $2}' | sort -u)

A big repo isn't always better.