Comparison between the UV LF at 15 ≤ z ≤ 20 (symbols as in Fig. 7) and two empirical models at different redshifts as indicated by the relevant labels: (a) model based on the Sheth & Tormen (1999) HMF and the L_UV/M_H at z = 5 by Mason et al. (2015) brightened by one magnitude to match the z ∼ 12.5 UV LF; (b) model maximising the abundance of high-redshift galaxies (see Sect. 5.2). In both panels are included for reference the binned LFs measured by Donnan et al. (2024) (z = 12.5), Whitler et al. (2025) (z = 16), Kokorev et al. (2025) (z = 18), and Pérez-González et al. (2025a) (z = 17 and z = 25), with symbol meanings as in Fig. 7.