Certain effects such as volumetrics and some bloom effects look good in my eevee viewport but when I render the scene the effects are ignored. I have tried as many different settings as I can think of and can’t get the volumetrics to render as they show up in the viewport. I’m on a 2015 Macbook pro and using blender 2.8.
Have you tried with the latest buildbot build? Does the problem occur with any scene, or just with that scene you show? Could you share a simple .blend file where you notice the problem?
Here I have tried in Linux (nvidia) with a simple configuration, and it seems to be working correctly.