That's a generalization that cannot be made. There are two factors at work here. First it is generally desirable to have the oil surface as far from the rotating parts as possible. For example there are dyno pans that are enormously deep. Second the underside of the oil pan can't hang too low or it will be damaged and maybe take the engine along with it. So with the engine a fixed distance from the ground, you can see that the designer has very little room to work with.

The trick is to get he oil level far enough from the crank without dragging the oil pan. So how to do this? One could widen the pan or lengthen the sump (dropped part of the pan). It'd be possible to have a high volume pan actually have the oil level below the full mark on the dipstick, because there would be more volume farther away from the crank.

I'd say it's a safe assumption that the oil in the pan should never be higher than the stock "full" mark on a stock dipstick.

R.