We're getting there!!! Glad the stand is included. Wonder if it's for vertical or flat because they do look decidedly different and given the shape of the console... unless maybe it's magically able to work both ways at different rotations..??
If you look at some of the side on vertical shots you can see a there's a raised section which matches the curve when the PS5 is lying horizontally, so I'd say there's a slot/groove for that to sit in.
Also worth noting that the disc and DE stands probably won't be interchangeable as the disc model is a lot wider at the base.