O11D Mini recommended airflow

I've been seeing a lot of posts lately saying that rads should go all in or all out. Previous stuff I read on the O11D Mini was to do intake on the side and exhaust out the top, which is my current set up in push config. Temps are fine and just running the Corsair pump/fan profile, typically sitting at 300-500rpm with water temps at idle at around 34. Two 280mm XR5's.

Just curious what everyone else does with this case. I also seem to get dust on the GPU backplate, so would all in help with that as it should have positive pressure to blow out of the open ports?