You can feed your baby while swaddled but it's recommended to not feed them when swaddled.
If you feed them while swaddled they are not usually as alert and may not eat enough when breastfeeding or when bottle feeding.
I would recommend removing them from being swaddled and then feeding them.
Then when done feeding the baby you can swaddled them again if you want too.
Not all newborns like to be swaddled but most newborns do like to be swaddled.
It's up to the individual newborn.
My nephew never liked being swaddled when he was a newborn and he would cry really loud as soon as you swaddled him.
He would not stop crying until his mother removed him from the swaddled position.
He hated it so bad.
However my other nephew loved being swaddled and he would sleep much better when swaddled.
Some newborns find the swaddling calming and relaxing but others hate it.