Top left panel: Best fit spectrum of the sky tile 111102, showing the effect of different column densities of absorbing material on the sky-background model. Black and grey data points show the eROSITA spectrum and the ROSAT constraints, respectively. The solid lines show the various components of the best-fit model with the FWC model in black, the unabsorbed local hot bubble in red, the warm-hot in blue, the 0.7 keV in green, and the cosmic X-ray background in magenta. This sky tile (shown in the bottom left of Fig. 2 and in green in Fig. 3) possesses a large total hydrogen column density (log(N_H,HI4) = 21.6), therefore it is not considered in this work. The best fit column density of absorbing material is log(N_H,bf) = 21.3. The dot-dashed and dashed lines show the same components (colour maintained) absorbed by a column density of log(N_H,bf) = 21.0 and log(N_H,bf) = 20.5, respectively. For column densities as large as log(N_H,bf) = 21.0 or log(N_H,bf) = 21.3, the presence of the low energy absorption cut off within 0.3-0.5 keV band induces a significant change on the shape and intensity of the warm-hot component. On the other hand, the shape of the 0.7 keV component is almost unaffected up to log(N_H,bf) = 21.3 and its intensity drops by less than a factor of 2. Top right panel: Best fit column density of neutral absorption as a function of the total column density of Galactic absorption derived from the HI4PI survey for the single layer model. Black and red circles show the data within 220◦ < l < 235◦ and 250◦ < l < 265◦, respectively. Filled (and empty) circles indicate values which are constrained (and unconstrained; i.e., fit uncertainty larger 1 dex) by the fit. The blue line shows the one-to-one correlation. Bottom panel: Correlation between the mass distribution of the Milky Way (Hunter et al. 2024) and the surface brightness as in Fig. 4, for sky tiles with log(N_H,HI4) < 21.0, once the bright point sources have been excised. The best fit correlation (red line) aligns with the previous results, confirming that absorption has a minimal effect.