GNU/Linux KDE Neon 20.04 Installing GIMP 2.x – Step by step Guide
How to Install Latest ‘The GIMP’ 2.x on KDE Neon 20.04 LTS GNU/Linux desktop – Step by step Tutorial.
And the GIMP 2.x for KDE Neon 20.04 (GNU Image Manipulation Program) is a Raster Graphics Editor used for Image Retouching and Editing, Free-Form Drawing, Resizing, Cropping, Photo-Montages, Converting between different Image Formats, and More specialized Tasks.
Finally, the Guide include detailed instruction on How to Getting Started with The GIMP on Ubuntu.

1. Launching Terminal
How to QuickStart with Command Line on KDE Neon GNU/Linux
First, Update the Apt Repo Sources with:
sudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
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