Mine is 8 week and Is on the exact same!
My little girl is 6 weeks and on average during the day she goes 3 hours between feeds and usually takes 4oz. She does sometimes sleep on the bottle and will then only take 2oz and then we find she will be hungry earlier as she’s playing catch up - it makes it harder for me to predict when and how much she will feed so I much prefer when I can get a full bottle down her! But from what I can gather it’s normal for them to feed little and often with not set routine.
He’s for sure playing catch up when he demands feeds sooner, especially since he can go almost 5 hrs between feeds at night and not finishing whole bottles. It’s normal and expected for your baby to want to feed more often during the day if they are sleeping longer stretches at night