Breastfeeding and formula feeding

Em

How do you guys breastfeed and supplement with formula? Or the other way around? I’m wanting to mainly do formula, but also want to incorporate some pumping to do breast milk too but I’m nervous baby won’t like the breast milk or the formula once baby gets one or the other. How do you guys do this? I’m curious. I always just formula fed with my first two so this time around I’m wanting to try but I’m a big ball of anxiety lol