I'm leaning towards the idea that, from a Marxist perspective, the question "do we as individuals have free will" involves a category mistake. Instead, as Marxists, we want to ask, "how have various relations of production impacted human freedom?" The latter is a question we can easily answer by understanding the relations between workers and capitalists, peasants and lords, etc.

Moreover, just as we use dialectics to understand history and society, we can and should use it to understand nature. What is evolution but the relational process of selecting the individuals (and species!) most adapted to their environment? Or of their impacts on environments that can cause the environment itself to change?

Two examples. Capitalist-induced climate change is an obvious case of a species altering their environment in profound ways. Likewise, some of the earliest organisms on earth, which produced oxygen, created the conditions for the atmosphere as we know it.

Tl;dr - relations are not deterministic, especially not at the level of ecology or society.

Does something worth calling free will "emerge" out of this fact? I think so, at least.