How often does your LO drink breast milk?

I’m having a serious issue with my husband after we went to the 9 month app. Our son is in the 8% for weight and the doctor wants him to breastfeed less often and eat more solids. I usually breast feed him every two hours and he BARELY eats solids. So the doctor told us he’s old enough that he should go way longer in between breastfeeding and he needs to be hungry enough for solids and more hungry for breastmilk. So now my husband thinks I should only breast feed like twice a day, and his main nutrition is solids and he doesn’t need to “fill up” on breast milk anymore. 🤦‍♀️🙄 I keep telling him we’re stretching out the hours in between breastfeeding because he’s just snacking on milk all day instead of being hungry enough for a belly full of solids AND milk. Sorry for the rant 😓 I’m just kinda depressed of this whole situation.