oh god this.
My open office now has white boards tacked to the end of every row of desk, infringing onto the walkways.
Every morning, all the teams have their daily standup and completely block the walkways.
The general chatter is so loud I need to wear headphones to focus on a task and there is always one person within 20 meters who likes to loudly talk about what they did on the weekend/had for dinner/what their cat threw up etc.
I don't think anyone actually believes in the whole increased collaboration thing. It is just a thinly veiled excuse to cram people into the smallest space possible.
If they actually cared about collaboration, everyone would have an office/decent cubical but there would be a large amount of meeting rooms or gather areas where people could work together when needed and actually get work done in peace when they need focus time.