Fe II triplet λλ4923, 5018, 5169 region of SN 2020xga (left panel) at −8.3 and +37.8 day spectra and SN 2022xgc at +21.9, +65.5 and +92.1 days spectra. A normalization and an arbitrary offset has been applied for illustration purposes. The spectra have been smoothed using the Savitzky-Golay filter and the original data are shown in lighter colors. The absorption features that correspond to the blueshift of the Fe II lines are denoted along with the velocities.