I'm not sure I agree that a deterministic universe would still not allow free will. But, since you brought up consciousness and seem to be asserting based on your articles that it definitely doesn't rely on QM, here's an article suggesting that it very well might.
I've seen dozens of citations of this flawed study. It's got problems.
The paper contains additional astonishing claims, such as 'Consciousness-related or electrophysiological signals are unknown in NMR' This ignores over three decades of work in functional MRI (fMRI) [26], which has been used in thousands of studies to monitor brain activity (including functional MRI with iMQCs) [7, 27, 28]. However, this claim is needed to justify assigning 'entanglement' to the difference between awake and sleeping brain scans-a difference which, in any event, is also the subject of hundreds of papers on resting state fMRI [29].
The body of work I gave you is much more indicative of no QM processes.
I'm not sure I agree that a deterministic universe would still not allow free will.
I don't see how it could exist in any but a compatibilist sense.