Count-rate-selected eROSITA and EPIC-pn spectra extracted from time windows highlighted in Fig. 1. The underlying model is the best-fitting reflection model absorbed by a partial coverer with varying covering fraction. The corresponding parameters are listed in Table 3. The data are strongly re-binned to facilitate visual inspection. Data of MOS2 are used in the spectral fits, but omitted in this plot to provide a clearer view. Lower panels: residuals belonging to each flux state. The spectra of eROSITA are scaled according to the fitted detector constant to match the EPIC-pn data. The wind is directly detected from the more prominent edge at 0.8 keV in the low-flux state.