First, the dominant philosophy of physics/science is that of falsification. Which roughly says that it is impossible to know the "true" laws. All of physics is

First, the dominant philosophy of physics/science is that of falsification. Which roughly says that it is impossible to know the "true" laws. All of physics is just models, nothing else, and you can't do better than that. Second, physicists also do not foist this question onto philosophers. There is plenty of work done on this by physicists. Particularly, on the question of whether the wavefunction is simply a calculational tool or more, there are many many papers written by physicists. Two samples [1, 2]. [1] https://www.nature.com/articles/nphys3233 https://www.nature.com/articles/nphys3233 [2] https://arxiv.org/abs/1409.1570 https://arxiv.org/abs/1409.1570