A(Li) and [Li/Fe] as a function of [Fe/H] (top and bottom panels respectively) for GALAH DR3 stars (circles) and open clusters from Romano et al. (2021) (five-pointed stars). The age of the stars and open clusters is colour-coded. In both panels, the solid curves show model A(Li) in different radial zones (4, 5, 6, 8, 10, 12, 14 kpc from bottom to top; the colours from dark red to orange are as in Fig. 7).