Feeding a swaddled baby is not recommended. There are quite a few reasons for this.
Firstly, swaddled babies cannot use their hands to latch properly during breastfeeding.
Secondly, they may get hot while they continue to breastfeed for a long time.
And thirdly, hungry babies start sucking on their fingers when they need to feed. Keeping them swaddled while they are awake may cause parents to miss out on their baby's hunger cues.