The company I work for had a "return to office" about two weeks ago, and while we still are 50%+ remote, those that aren't we're now in the office a lot more. My first impression after two weeks is how little the in office people get done. They spend a significant amount of time socializing and walking around to meetings and getting meeting rooms working and eating, and when they are in meetings, are less focused, and when they aren't in meetings, they talk about not being able to concentrate as well because of all the distractions.

They also seem to be having a lot more fun!

It should be interesting to see how it plays out in the next few years!