Dividers will be left up no matter what. No one gives a #&$% about collaboration when there is that much office noise. Most people will turn to using sound cancelling headphones. Especially technical groups (i.e. developers)
Open office designs also hurt interaction because of the pressure to "look busy".
https://www.washingtonpost.com/business/2018/07/18/open-office-plans-are-bad-you-thought/
PS
"Team rooms" are more likely to be used for naps or sex that for actual work.