My guess would be "no" for the following reasons:
1. Neither Blizzard nor Activision nor Ubisoft are headquartered in Silicon Valley.
2. "Silicon Valley bro culture" itself seems to be a largely manufactured story.
I just find it funny how often commenters here assume all broism originates in SV.
To my eyes and experience over 10 years interacting with people, I have seen nothing of the sort, for which I believe this kind of culture must be very conditioned to the right (or wrong?) mix of individuals that by far do not make justice to the average SV engineer.
The tech teams and tech managers are usually trying to impress you about how they spent the weekend coding on a PDP-11, playing board games or mountain biking while drinking custom brand protein drinks. Generally harmless stuff like that.
The exec teams are where the sociopaths live and work, and I've seen all sorts of bro one-upmanship there. The worse types, by far, are the rugby bros. The tales these guys tell each other are always of the "here's a horrible thing I did, so don't mess with me".