Depends entirely on the context. Framed like that? Probably not a Nazi, but I wouldn't dare make judgement without knowing what actually transpired.
Might be a hot take, but the idea that the word "Nazi" is thrown around like it's nothing is actually overblown, and usually it's correctly thrown.
You're literally on one of the alternatives. FOSS is a rejection of the profit motive, and individual ownership of Capital. It is, quite literally, an anticapitalist statement. Are you under the impression you're on Reddit?
Money doesn't need to come from Capitalists, and again, Capitalists aren't doing the innovating. That's like saying the bread baker that fed the Engineer is doing the innovating, because without the bread baker, the Engineer couldn't innovate. Of course humanity is interlinked, no one man is an island, but that doesn't mean labor performed by one person is actually labor performed by another.
I'll make it simple for you, and give you 2 choices.
Factory 1: Capitalist owner, non-owner workers. The only voice workers have is to either get a new job, or unionize.
Factory 2: Workers are the owners, and thus production is democratized. One of the workers is elected as a manager, and may be stripped of power by the rest of the workers at any time.
Which one is better?
To circle back: what you listed is a very, very narrow vision of what Socialism can mean. Socialism is Worker Ownership of the Means of Production, and can be just as varied as Capitalist organization. Are you going to say that Sweden is the same as Pinochet's Chile, just because both were/are Capitalist? Absurd.