Stellar to halo mass function adapted from Fig. 2 of Sales et al. (2022). The orange area was used in the sampling of the LF. Open symbols correspond to simulations of dwarf galaxies around a Milky Way-mass host halo from: APOSTLE-l1 (Sawala et al. 2016; Fattahi et al. 2016), FIRE:Latte/ELVIS (Wetzel et al. 2016; Garrison-Kimmel et al. 2019), NIHAO-UHD (Buck et al. 2019), Auriga-L3 (Grand et al. 2017), and DC Justice League (Munshi et al. 2021). Filled symbols correspond to zoom-in dwarf galaxies from: FIRE (Wheeler et al. 2015, 2019; Fitts et al. 2017), NIHAO (Wang et al. 2015), Marvel (Munshi et al. 2021), GEAR (Revaz & Jablonka 2018; Sanati et al. 2023), EDGE (Rey et al. 2019, 2020), and Jeon (Jeon et al. 2017). The dashed and dotted lines show abundance matching relations from Behroozi et al. (2013) and Moster et al. (2013), respectively. Note that their predictions are extrapolated below about 10¹⁰M₂₀₀.