Comparison of methanol integrated fluxes between low- and high-mass protostars. The values for low-mass protostars are taken from Nazari et al. (2022b). The circles show the ratio of methanol-integrated fluxes of fiducial envelope-plus-disk models with varying luminosity to those of envelope-only models for high-mass protostars. The stars show the same for low-mass protostars. Green shows low mm opacity dust, and orange shows high mm opacity dust. Low-mass disks are more effective in decreasing the methanol emission than high-mass disks.