Hakka Question

Sorry if this question seems a little dumb, but I’m a FTM and I don’t know 🤷🏻‍♀️

When using the Hakka on the opposite breast you’re nursing on, is it taking away how much baby will eat when you switch sides? As in, if I use the Hakka and then switch to nurse on the side I used it on, am I taking away ounces from my baby? Would it be better to just let baby fully nurse without using the Hakka first?

I’m trying to ask this is the least confusing way 🥴