From NCSC Hardening Guide

ubuntu_privacy.txt

Ubuntu Privacy

sudo systemctl stop apport.service
sudo systemctl disable apport.service
sudo systemctl mask apport.service
gsettings set com.ubuntu.update-notifier show-apport-crashes false
ubuntu-report -f send no
sudo systemctl stop whoopsie.service
sudo systemctl disable whoopsie.service
sudo systemctl mask whoopsie.service
sudo apt-get remove -y popularity-contest