I'm especially interested if there are any attempts at reconciling Schopenhauer's metaphysical will with the seeming indeterministic nature of quantum physics. Thank you.
Bernardo Kastrup wrote a book titled "Decoding Schopenhauer's Metaphysics".
First proposed more than 200 years ago, Schopenhauer's extraordinarily prescient metaphysics if understood along the lines thoroughly elucidated and substantiated in this volume offers powerful answers not only to the paradoxes of quantum mechanics, but also to modern philosophical dilemmas such as the hard problem of consciousness which plagues mainstream physicalism, and the subject combination problem which plagues constitutive panpsychism.
"Schopenhauer identifies the thing-in-itself—the inner essence of everything—as will." Wikipedia
The only thing-in-itself one can know (short of telepathy) is oneself. Everything else is representation, phenomena. The will, in its most fundamental aspect, is the life instinct, and from human life emerges thought. Thought and culture—as collective exploration and ideas—founds the discoveries of science, some of which continue to baffle e.g. wave-particle duality. There you have the link from will to quantum physics, tenuous though it is.