What water to use with formula?

Ch

I tried looking up online if I can use distilled water to mix with baby formula and the first two websites say completely different things. Can someone explain to me if I can use distilled water or not?

Also, is it different if I want to breast feed and formula feed? Is there anything else I should know if I do this? I’m going to be a first time mom and I didn’t realize it was so complicated.