These findings align well with previous results for this system, where the same trend was observed. The BSE@evGW framework in contrast provides an improvement of the absorption spectrum when comparing with the TD-DFT results for the same (α, ω), however it does not perform as well as the TD-DFT (α = 0, ω = 0.14) result. At first glance this appears disappointing, particularly recalling the superior performance for similar Fe-compounds reported in Ref. 25. In this work, it was also shown that there is little dependence of BSE@GW spectra on the XC-functional, implying for the present case that along this line there is perhaps little room for improvement of the result shown in Fig. .