7 hours unbroken sleep 3 or 4 nights a week certainly made it easier for me. I had a full night sleep on night 2 with my formula feed baby. I had to wait over 2 years for this with my breast fed one.
As for the bottle admin, I spent maybe 30m choosing and buying bottles on Amazon. Washing and putting into the steriliser was my husbands job, and it took him 5-10m a day. I took them out, made up half a dozen bottles, flash cooled them and put them in the fridge. Again 5-10m a day.
Did i find just putting baby to breast easier than heating up and giving a bottle: absolutely. Was it harder doing ,100% rather than 50% of the work. Also yes.
Saying that, I loved having instant milk to hand, never running out, and having to carry less. I loved how my baby loved it, and that it was fresh human milk. I prefer fresh milk over milk powder, so I imagine a baby would too.
Tbh, some people find boobs easier, others bottles easier. There really is no right and wrong here OP. Choose the path that is right for you and your family.
PS: there are a lot of lazy men out there who think women should do so the night feeds regardless. If you decide to mix/go formula so he can do feeds, please make sure if his commitment to this before hand! We have always treated carrying for the children as retreat, day and night, irrespective of working, as some sort is a basic need.