Hello! Thank you for the reply!
Meanwhile I’ve been testing things and I couldn’t find a pattern in this behavior…I even deleted all the lights, fog and postprocessing volume from the scene to see if it would disappear and the outlines were still appearing… Coming back to a previous version of the scene the outlines were still there…I was checking the camera settings again, and turns out that if I drag up the “Min Fstop” and then put back the values (I was using the preset value of 1.2) minimized the effect a lot. These outlines seem to be related to the Camera Focus, it looks like the outlines only appear in objects that are out of focus or in parts of objects that aren’t sharp. I will be working on another scene so if I gather any more information I’ll add a comment here, meanwhile I’ll try to recreate the effect in a blank new project to see what I can gather.