Scaled and shifted JWST/NIRSpec 4.31–4.57 μm spectra of the selected regions (see Sect. 3.1 and Figs. 2 and A.1–A.4). The wavelength of the transitions tracing ionized gas (Hu-12), warm molecular gas (H₂ 0–0 S(10) 4.410 μm and 1–1 S(11) 4.417 μm), highly ionized gas ([Mg IV] and [Ar VI]), and the CO v = 1–0 band are indicated by the green, blue, red, and purple vertical lines, respectively.