tl;dr : No, FOSS project are used by military and fascists
long: It's link to a common misunderstanding of "mean of production". FOSS developers do not own the mean of production. Mean of production is not just the tool to produce goods and services, but all the industry needed to make them available : promotion, distribution, ... Socialization (for anarchists) or collectivization (for comies) of industries mean that workers own and manage (or self-organized) every establishment needed for this and organize together to get their power back. In this case, we could abolish some industries, change them, or choose where to send the production or not. This is the same for cooperatives and self-managed places; it's may be some interesting experience or complementary with class struggle, but is not a revolutionary move in itself