A comparison between SB 230 and the larger central structure observed in (a) the 3D simulation cube, and (b) a 2D x-y plane density slice at z = 202 pc. (c) SB 230 is seen in 3D as a distinct, well-defined superbubble, making it an ideal candidate for tracking its evolution. (d) The structure below SB 230, though appearing bubble-like in 2D, is revealed in 3D to be part of an extensive interconnected system forming a tunnel-like structure linking the upper and lower Galactic halo. Such a feature does not meet the criteria for an isolated superbubble driven by localized supernova explosions. The central structure largely represents the diffuse, interconnected hot gas within the ISM, whereas the isolated bubble on the right more accurately corresponds to a discrete superbubble formed by localized supernova activity.