Which is why I said “part of being young.” That said, I don’t remember being so explicitly mad at previous generations when I grew up (as a millennial). “Ok boomer” is a big part of the gen z vocabulary.
I've seen it used by both millenials and zoomers, mostly directed at boomers. It captures a general sentiment that is widespread among those generations that the boomer generation uses (or used existing) systems of power to benefit themselves to the detriment of younger generations and then complains as the younger generations struggle to earn their place in those systems.
What makes you say that? Certainly tiktok seems to be full of a lot of generational humor/videos, which must explicitly naming boomers and often showing people their age. But maybe I’m too old to understand their explicit gripes.