SHELL

uninstall apt package ubuntu 20.04

$ sudo apt purge package-name
OR
$ sudo apt-get purge package-name
OR
$ sudo dpkg -P package-name

uninstall apt package ubuntu 20.04

$ sudo apt remove package-name
OR
$ sudo apt-get remove package-name
OR
$ sudo dpkg -r package-name

uninstall apt package ubuntu 20.04

$ apt --installed
OR
$ dpkg -l