I would argue both determinism and free will are wrong.

As mobile organisms, with a sequential process of perception and a narrative based culture, we experience time as the point of the present moving past to future, but the reality is that change turns future to past. Tomorrow becomes yesterday, because the earth turns.

There is no literal dimension of time, because the past is consumed by the present, to inform and drive it, aka, causality and conservation of energy. Cause becomes effect.

Time is an effect, like temperature, pressure, color, sound, etc. Think frequencies and amplitudes. There is only this physical state we refer to as the present.

The premise of determinism is that as cause yields effect, all events must be decided, even before they occur, but the process of determination, the calculation by which input leads to output, only occurs as the present. If the process doesn’t happen, there is no cause, or effect. So the future cannot be determined before it occurs. Potential precedes actual.

As for free will, if our will was free of cause, it would be equally free of effect and the entire premise of will is to affect. We are part of nature’s process of selection.