[Question] How Should Free Will Theories Impact Effective Altruism?

I have not found any Effective Altruist literature on free will debates and implications, which I was surprised by as it seems to be a topic of potentially great moral importance. Can anyone point me to existing work?

If free will doesn’t exist, does that ruin/​render void the EA endeavour? If so are most EAs libertarians re free will?

In light of thinkers such as Sam Harris’s work dismantling free will, which I find compelling, https://​​samharris.org/​​the-illusion-of-free-will/​​ and given the ought-implies-can principle, can morality be salvaged? Eg, how could I ‘ought’ to choose an impactful career, if my actions are all predetermined?