GNU/Linux Ubuntu 20.04 Installing AMD Open Source Drivers Guide
You Are Welcome! The Tutorial shows you Step-by-Step How to Install AMD Radeon and ATI Open Source Display Drivers in Ubuntu 20.04 Focal LTS GNU/Linux Desktop.
And Open Source AMDGPU Graphics Drivers for Ubuntu Focal includes Updated Free Graphics Drivers for AMD Graphics Cards.
Especially relevant: as a complement you may be intesested also to the MESA Graphics Drivers Suite Setup.

1. Launching Terminal
How to Quick-Start with Command Line on Ubuntu
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.
Contents
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