GNU/Linux Ubuntu 20.10 Installing AMDGPU Pro – Step by step Guide
How to Install AMDGPU-Pro Graphics Driver for Ubuntu 20.10 Groovy GNU/Linux – Step by step Tutorial.
And AMDGPU Pro for Ubuntu 20.10 includes the AMD Proprietary OpenGL, OpenCL, and Vulkan Drivers.
Finally, for the Open Source Drivers See instead: How to Install AMDGPU from Ubuntu PPA.

1. Terminal Getting Started Guide
How to QuickStart with Command Line on Ubuntu 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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