It's absolutely a meme. Generational politics imply that boomer capitalists are somehow qualitatively different from gen x capitalists or millennial capitalists, that we can juxtapose capitalism with boomer characteristics vs capitalism with gen x characteristics vs capitalism with millennial characteristics. Outside of surface level aesthetics like fashion sense and use of slang, there's really not a whole lot distinguishing the three different types of capitalists. It's not like boomer capitalists are more likely to be industrialists or that millennial capitalists are less likely to pursue labor arbitrage.

Gates is a boomer, Musk is a gen x, Zuckerberg is a millennial, but they're all capitalists in the end. I was honestly surprised that all three belonged in different generational cohorts. Bezos exists on the cusp of a boomer and gen x, but no one would use this fact to somehow suggest that he acts like a cross between the boomer Gates and the gen x Musk like some Gates/Musk hybrid because that's a ridiculous thing to say.

beyond boomers tending to be wealthier than other generations (and perhaps more annoying), no it doesn't