@wisedragon thanks so much for your answers here. If I could press you once more…
I’m having the same issue (no discernible DoF; DoF visualization yields no result), but can’t find a check box for ‘scalability.’ The scalability in the settings menu above the viewport gives me the option to turn everything up to ‘cinematic’ but I can’t find an option to turn scalability off entirely. There’s no checkbox for this in my viewport, or anywhere searchable in project, world, or editor settings. I’d appreciate any further insight. Thanks for your time!