This guide will instruct on uninstalling the Anaconda Python distribution and purging the computer of old configuration files which can be problematic. The instructions can be used to uninstall Miniconda/Miniforge and Mambaforge which all leave similar configuration files behind.
Go to the Home folder. Select options and Show Hidden Files:

The Prompt in the Terminal will be prefixed with (base) from previously initialised Anaconda/Miniconda/Miniforge/Mambaforge installations:
To run a commmand as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.
(base) philip@pc:~$
Close down any open Terminals. Then open up the .bashrc file in the text editor:

Remove the conda initialise code block which should look like the following:
# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup="$('/home/philip/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"
if [ $? -eq 0 ]; then
eval "$__conda_setup"
else
if [ -f "/home/philip/anaconda3/etc/profile.d/conda.sh" ]; then
. "/home/philip/anaconda3/etc/profile.d/conda.sh"
else
export PATH="/home/philip/anaconda3/bin:$PATH"
fi
fi
unset __conda_setup
# <<< conda initialize <<<
Save the file. When the terminal is opened it should look at the updated .bashrc file and the prompt should now exclude the prefix (base):
To run a commmand as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.
philip@pc:~$
Delete the folder(s):
- anaconda3
- miniconda3
- miniforge
- mambaforge

Delete the following hidden configuration folders:
- .amaconda
- .conda
- .continuum
- .ipython
- .jupyter
Delete the file:
- .condarc

Having an old version of this file from a previous Anaconda installation and then installing Mambaforge for example without deleting this file may result in the mamba package manager using the wrong channel (conda instead of conda-forge) which can be problematic.

Go to the folder:
- .config
Do not delete this folder as it is used by Linux and other programs.

Delete the subfolders:
- matplotlib
- spyder-py3

The folder options can be used to Hide Hidden Files:

This gives a clean Linux Operating System to install Mambaforge or an updated version of Anaconda.