The saddest thing of our age is that "reactionary" and "individual freedom" is equated to authoritarian movements that are anything but.
The hacker aesthetic has always been anarchist in nature, until the rich Californians decided that a hacker is an entrepreneur that participates into the game of capitalism. To be fair, even the concept of libertarianism was an offshoot of anarchism, until the Americans decided that it means right-wing party politics of the rich elite. Words don't mean anything any more, any concept that can equated to its opposite if it rewards one with internet points.
I'm in complete agreement with your defense of "individual freedom". But how is "reactionary" anything but an authoritarian movement? I'd say those two are basically synonyms regardless of whether we're talking about "reactionary mass media" or the political philosophy laid out by Yarvin where he took ownership of the term. Do you have another definition in mind?
"Right wing politics dominated by the rich" is the natural endpoint of libertarianism, so that makes sense. Whether they're "real" libertarians or not, the elite techies leading the charge are people with politics like Karp, Andreessen, Musk, etc.