AMD Radeon Ubuntu 20.04 Driver Installation - LinuxConfig.org

AMD graphic cards are well supported on Ubuntu 20.04 Focal Fossa. The default open source AMD Radeon Driver is installed and enabled by default out of the box. However, since the Ubuntu 20.04 is a long term support (LTS) release the AMD Radeon graphic card users have few AMD Radeon driver installation options to their disposal.
This is a companion discussion topic for the original entry at https://linuxconfig.org/amd-radeon-ubuntu-20-04-driver-installation

How did you install the proprietary driver on 20.04? AMD’s just offering a “Radeon™ Software for Linux® Driver for Ubuntu 18.04.4 HWE” driver which quits its installation process with

ERROR: Unable to install amdgpu-pro-pin.
This driver may not support the running operating system.

AMD released Ubuntu 20.04 drivers. Please check it out.

Thank you. It help fix laggy wireless mouse on ryzen. But the performance of the vga display still same.