This page is not available in the language you have chosen. It will be displayed in English by default. If you would like to view it in a different language, you can try selecting another language.
Screenspace Reflections are a dynamic post process effect. While it can only reflect what is on screen, thusly creating some odd artifacts on perfectly reflective surfaces. However, by adding a bit of roughness to a Material, these artifacts will be blended away.
To enable Screenspace Reflections, use the console command r.ssr 1 or select in the Viewport Show > Lighting Features > Screen Space Reflections.