Daughter has become distant since new baby

for 22 months you and her were in the post-partum fusion where a child sees nothing but his or her mom, now a new child arrives and is experiencing this fusion, a lot of big changes and big emotions in everyone involved. its healthy for her to bond with her dad because bonding with other people beside their mom is an important part of emotional growth, so is developing some independance from the mom , in the sense that the fusion time is over. now the real relationships develop and you also will develop a new bond with her, that of a parent and a child, which is different than the temporary baby-to-mom dependency relation. basically the previous bond is over and will not come back, but that's a good, healthy thing, a new bond will develop and this one will last until late adolescence, then an other mutation will pass which will last until you die. you're just watering a tree to make sure it grows well but it will more and more become its own thing.

It’s fairly typical. First sibling suddenly is not the number one priority in the house any more.
Welcome to parenthood :)

Give her a little mother daughter time, where dad looks after baby - and she's your sole focus for an hour or two a day.

She's gone from being the main focus of your attention to suddenly having to share you with a sibling who's getting more attention than she is... how would you feel if your boyfriend/husband told you that he's getting a new partner - and s/he is getting all his attention while you stand there and watch???

It's the same thing for your daughter.

i'm not or never have been a parent, but let me put my 2 cents worth here. i believe it to be a temporary thing and you may be over thinking it. you and dad seem like good parents and that's all that matters for you and your daughter to bond into a great friendship (not just mom and daughter) when she gets older...congrats on your new baby and have a wonderful life with your young family. ❤️

she's probably just naturally jealous and thats her way of coping, a neew baby is upsetting. her routine has been disrupted and she sees you preoccupied with the baby... just do your best to let her know that she hasnt been replaced

She is no longer the focus of your attention, so she is going where she can be.. I cant help but wonder if this is the source of the father/daughter closeness so many daughters experience..😷

It’s probably temporary

My daughter did the same, and she even seemed a little mad at me (when I first brought her brother home)

She hates you for making a baby. Since she feels that you are giving all your love to the new baby. Its more natural for her to love her dad more if your new baby is a boy.

A bit of jealousy over the new baby and perhaps she is feeling replaced.
Make some special moments just for you and her and tell her how special that she is and then sometimes explain how much the new baby needs her too.