I came across 2 nuggets about the topic : uninstall on internet.
You can search these links on my public listing page on learning paths
sudo apt-get purge mongodb mongodb-server mongodb-server-core mongodb-clients sudo apt-get purge mongodb-org sudo get autorem
Learning Paths - Feedback Uninstall https://docs.google.com/spreadsheets/d/14EHQYISwbU9rt-_-KfsdFsizhD6uBA8fuv93tmIwJqQ/edit?ts=5ce90734#gid=680235705