Left: relationship between [F/Fe] and [Fe/H], age, and R_gc. Right: same but for [F/H]. Data from Nandakumar et al. (2023b) are depicted as gray dots. We also report values for five OCs, namely Hyades, NGC 752, and M67 from Nault & Pilachowski (2013), another estimate of M67 and another cluster, NGC 6404, from Maiorca et al. (2014), and NGC 2345 from Holanda et al. (2023). The slopes −0.014 ± 0.045 and −0.132 ± 0.072 (shown in the figure) were obtained by incorporating the calculations of NGC 6791 into the plot.