Hi OP,
4 breast feeds a day doesnt sound very much and their milk should be their primary source of nutrition until they’re 1 years old.
I breastfed both my children and during their waking hours 7am-7.30pm they were still feeding about 7 times at this age, as well as their meals during their day.
Remember that food is just for fun and it is not as calorie heavy as milk, so milk should always be offered regularly and before food when it comes to keeping them full and sustained.
I absolutely understand babies BF for comfort too, but if your daughter is only BF 4 times a day and then comfort feeding all night it may be that not feeling full could be what’s preventing her from falling into a deep sleep and staying asleep, or maybe comfort suckling is her way of trying to stimulate your milk production due to infrequent breastfeeds during the day having an impact on your supply? (nipple stimulation as well as milk removal plays a large role in milk production).
This is of course just a theory / just a suggestion, but maybe increasing her daytime feeds may help?
I went back to work when mine were 9 months old and neither of them took a bottle either, and instead just had water or EBM from a sippy cup.
I also co-slept with mine and this definitely contributed to issues I had with frequent night wakings and although I’m a huge advocate of co-sleeping, it wasn’t until I put them in their own rooms and own cots that there was a huge reduction in night wakings and night feeds.