We were in a FH cabin back in 2020 right before covid hit. The cabin had 2 bathrooms which is nice when the kids are traveling with you. Don't recall any issues with noise.
I don't think your daughter will make any friends in the lounge as the parents watch their kids like a hawk. My kids joined the kids clubs and that's where they met new friends. Literally every day they would get together and do things.
The lounge had almost the identical food as the buffet, but for some reason, bacon was never at breakfast. We had to go to the Lido buffet to get my daughter bacon. Oh and you get free coffee and cappuccino in the lounge. Not the best, but it's free.
Enjoy your cruise 🙂