Mid-IR diagnostic diagram representing log([Ne V]/[Ne II]) versus log([Ne III]/[Ne II]) to divide between AGN (red area), shocks (green area), and SF (purple line) ionisation based on Fig. 5 in Feltre et al. (2023). The shaded areas schematically represent part of the grid of models in Feltre et al. (2023), and are used here just as a reference. We represent with a blue and a black star the position of the N and S nucleus, respectively (see Sect. 3.3). For comparison, we show the integrated value derived by Armus et al. (2006) for NGC 6240 as a white circle, and the nuclear values obtained with similar JWST data for other local type-2 Seyfert galaxies: yellow circle for NGC 7172 (Hermosa Muñoz et al. 2024b), orange circle for NGC 6552 (Álvarez-Márquez et al. 2023), dark (light) green triangles for the total (primary component) flux of the line for the type-1.5 Seyfert NGC 7469 (Armus et al. 2023), and red circle for NGC 7319 (Pereira-Santaella et al. 2022). Additionally, we show the ratios for two LINERs, namely NGC 4594 and NGC 1052, as a blue and brown squares, respectively (Goold et al. 2024).