Nope, it’s not. “Libertarian socialism” and “anarchism” are often used more-or-less interchangeably, though I’m sure someone will take issue with that categorization. The pro-capitalist usage of the word “libertarian” is an appropriation of a leftist term by the right.
In French, libertaire and anarchist are literally interchangeable.
I am beyond sick and tired of both left and right wing people using “Libertarian” to refer to lunatics from the American GOP who decided to co-op and abuse the term.
Libertarianism per se has nothing to do with capitalism per se. You can have libertarianism with or without capitalism and vice-versa, at least in principle (in practice, of course, some implementations are going to be more challenging than others to design and/or implement).
