I've heard of other offices where they didn't have the pingpong table, so they just threw the ping pong balls at each other all day.
This is in the midwest, at lower-tier tech companies that you probably haven't heard of but you probably have used some of their work.
Edit: They did a follow-up some years later (https://www.youtube.com/watch?v=_v7v51le0lc) and somewhat surprisingly they were still pretty similar! I guess they really know how to balance themselves, since they do seem to be putting out a good product.
They were a darling of HN(YC financed the early rounds) here at first in the late 200Xs following the classic Youtube/Kim Dotcom growth strategy of allowing pretty much any content on Scribd.
The "any content is good content" strategy seemed to work and Scribd grew in popularity but profits remained elusive.
Then Scribd went all dark-patterns on users locking content behind paywalls. This was content that users had submitted themselves.
Finally the inevitable pivot to ebook subscription services happened.
Scribd seems somewhat respectable now although how profitable?
The closes we get to "bros a 'boring" is the occasional free beer on a Friday.
Outside of SV it seems like that culture is a minority.
My mental image of finance was "bros a'broing", but the reality of the experience was professionals who were fully attuned to the reality of dealing with billions of dollars, and no delusions about how a few lines of javascript will change the world.
Whereas when I went to Google, I was met with a mix of "you're changing the world, selling eyeballs to advertisers" and "It's so great, we get to dress like we're 12 and play like we're 12".
Or the long since pivoted startup I interviewed who was doing their best to break the internet through awful PDF readers while in the office, everyone was ziplining and pogo-sticking around. (I await the mod slap for speaking ill of a YC company).