Ubuntu - GPU - Mesa - Check if your system uses Mesa

glxinfo | grep Mesa

returns:

client glx vendor string: Mesa Project and SGI
OpenGL core profile version string: 4.6 (Core Profile) Mesa 22.3.0-devel
OpenGL version string: 4.6 (Compatibility Profile) Mesa 22.3.0-devel
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 22.3.0-devel