How much does your 8 week old baby take in a bottle?

I mostly breastfeed but my husband tries to give him a bottle each day. It's hard for me to know how much to give him cause he's always going through growth spurts. I looked it up and the recommendation is 2-4 ounces, but sometimes I'll give him 4 oz and he'll still act hungry. I'm just curious what other babies take at this age

BTW I pace feed and burp multiple times in between so he eats slow it takes about 45 minutes to finish 4 oz and we try to give his body time to realize he's full but he still fusses and bobs around looking for more