Practicing in the midwest, on non-expansive soils, we would run the slab over the footing and place a 1/2-inch control joint between the slab and the wall. The slab will cantilever and tolerate some footing settlement. if settlement is too large, the slab will crack anyway.
If the slab meets the footing as you have shown, a small amount of footing settlement causes an offset that will affect the floor covering. If you dowel them together, footing settlement will crack the slab or rotate the footing.
Another benefit of placing the footing below the slab is that a perimeter drain laid on top of the footing will have its flowlne below the top of slab level, reducing the chanace that water will come in. Building on clays, any time the exterior grade is higher than the floor level, there is a chance of water entering, and a perimeter drain is needed.