The OpenGL libraries typically come from your graphics card drivers, and looks like Fyne-io needs fairly new Graphics Card Drivers. (It uses OpenGL 3.2 which was released around 2009 It uses OpenGL 2.0). So you can try to:
- Use a Software Implementation of OpenGL using the Mesa project, which should be "good enough" for most desktop apps use cases - more details here: https://fdossena.com/?p=mesa/index.frag
- Update your Graphics Card drivers - If they are available for your hardware, to get GPU accelerated OpenGL. Definitely try this this if you are planning on making a graphics intensive application).
Edit: Updated the version of the OpenGL context Fyne uses