How to test 3d acceleration (FPS) on Ubuntu 20.04 Focal Fossa - LinuxConfig.org

The objective of this tutorial is to provide the reader with a quick-start guide on how to test 3d acceleration by checking for FPS on Ubuntu 20.04 Focal Fossa
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-test-3d-acceleration-fps-on-ubuntu-20-04-focal-fossa