Answered by : victorious-vicuntildea

sudo apt-get remove chromium --purge
rm -rf ~/.config/chromium
rm -rf ~/.cache/chromium
sudo rm -rf /etc/chromium

Source : https://ubuntu.forumming.com/question/8189/how-to-completely-remove-chromium-browser-from-ubuntu-18-04 | Last Update : Sun, 05 Sep 21