Only in the sense that they are both theories.
They cannot both be 'true'.
Materialism says that the brain manufactures Consciousness/Thought.There is simply no evidence, and evidence to the contrary.
Regarding free will our differences of opinion depend upon what you mean by 'free will' .
The only 'free-will/choice' of which I am cognizant is the 'feeling' (feelings are thought) that we make 'choices'. The making of unfettered choices requires 'free-will'.
All exist within ego/thought.
I certainly don't believe in it.
I believe in determinism so I don't believe that what happened could be otherwise than it was.
Can we bring this into the Reality of Here! Now!?;
What IS (happenING) can never be otherwise than it Is!
And if THAT is true, then 'motion' (the whole '-ing' thing) is impossible!
'Free', no more than a feelingHowever the possibilities of human imagination are so creative that we do as a matter of fact feel like we have free will. It's the idea that will has a substantial correlate that's wrong.
'will', a vain feeling that one 'causes to happen' according to desires.
'choice', another feeling/thought.
'Substantial correlate'? Are you referring to the dream? *__-