You could reasonably consider free will to be an abstraction or a language game, but it is closely linked to moral responsibility, prisons, punishment, etc, which are very much not language games.

I don't think free will exists because I don't think supernatural phenomena exist, and there's certainly no natural explanation for free will (Penrose was correct about that). But I have a very non-nihilistic view on things [1].

[1] https://sunshowers.io/posts/there-is-no-free-will/