Left panels: examples of surface density profiles (black dots) of galaxies with type I, II, and III disks, from top to bottom. The exponential (blue dashed lines) and Sérsic (orange dashed) functions are used to decompose the disk and bulge component in morphology; their combined fitting results correspond to the yellow solid profiles. Vertical black dashed lines mark the break radius (R_break), where the profile first deviates from the inner exponential part. Right panels: the fraction of galaxies with different disk types as a function of their stellar masses. Solid and dashed lines denote results from two galaxy samples: our kinematically selected primary sample (f_disk > 0.4; M. Du et al. 2019, 2020) and a morphologically defined sample incorporating visually classified disks to enable direct comparison with observational surveys (J. Laine et al. 2016; Y. Tang et al. 2020). The upper panel gives their number counts in each stellar mass bin.