I think the difference there is that the Mac Studio will spend a lot of time with the fans at very low speed, and any dust that settles near the intake during t

I think the difference there is that the Mac Studio will spend a lot of time with the fans at very low speed, and any dust that settles near the intake during that time will get sucked up later when the fans ramp up. If the intake were higher up the recently settled dust would stay on the desk and you'd only pull in airborne dust.