Do lower mass stars consume more hydrogen than higher mass stars? If I understand correctly, red dwarfs consume all of their hydrogen and will eventually shrink into helium white dwarfs, whereas the higher mass stars will consume a fair amount of their hydrogen fuel, not necessarily all of it. Correct me if I'm wrong.
Stars less than about 0.3 solar masses are fully convective, so hydrogen throughout the entire star can be transported to the core and consumed.  At higher masses, the core is radiative, so only hydrogen that starts in the core is consumed.