When Vibrant Visuals reflections are enabled (set to Low or Medium), reflections appear on all block types, including grass, dirt, and other non-reflective surfaces. This makes the game world look overly shiny and unrealistic. Reflections should only apply to water and other reflective materials, but currently they are applied globally.
This is caused by the RivaTuner Statistics Server overlay. See MCPE-230295 for more information.