Here is the video version, if you prefer it:
Here is how you can remove packages from your computer: (“How can you completely remove a package?,” n.d.)
sudo apt --purge remove packageName
Then after that, to remove the dependencies that were just used by that package and aren’t used by any other package anymore:
sudo apt --purge autoremove
There may be some configuration files left over, either in the .config directory in your home folder or as a standalone hidden file (which means its filename starts with a .). You have to delete those manually.
Hope you learned something useful!
References
How can you completely remove a package? (n.d.). Retrieved February 11, 2020, from https://askubuntu.com/questions/151941/how-can-you-completely-remove-a-package