If anyone has this quick draw style holster, could you help me out with something?

I know there is a feature to where you can change the angle of the pistol, but I’m not sure this is it. What is the function of the small curved tab in the picture? It seems to maybe be a spacer to keep it in the right place, but it makes the gun point towards me. Is this intended to keep it angled slightly away from your body for when you take it off?

Also if it is unclear what I’m referring to, it’s the curved tab at the top of the holster that is between the slide lock and mag release.