How often do u change baby

So do u change baby on every single feeding or use your judgement on if the diaper is actually wet and needs to be changed.

Asking because even tho Baby was just changed less than an hour and a half ago Husband still changed her because she was about to eat. I’ve told him he has to use his judgement sometimes but he basically tossed a barely used diaper and my concern is what happens when we are spending money on diapers weekly? ( still have diapers from baby shower)

Am I wrong?