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GPU - Mesa

Mesa is an open source 3D computer graphics library that provides a generic OpenGL implementation for rendering three-dimensional graphics on multiple platforms.

Install Mesa Utilities

sudo apt install mesa-utils

Get info

glxinfo | grep OpenGL

returns:

OpenGL vendor string: X.Org
OpenGL renderer string: AMD Radeon RX 5700 XT (NAVI10, DRM 3.38.0, 5.8.1-050801-generic, LLVM 10.0.1)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.3.0-devel (git-b38879f 2020-08-17 focal-oibaf-ppa)
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.3.0-devel (git-b38879f 2020-08-17 focal-oibaf-ppa)
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 20.3.0-devel (git-b38879f 2020-08-17 focal-oibaf-ppa)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

NOTE: If in the OpenGL renderer string: you see llvmpipe, that means your system doesn't use the GPU but the CPU instead to render the computer graphics.