QFT doesn't have a duality of particles and waves, it explains both as excitations in underlying fields. So even the particle in a double slit experiment is jus

QFT doesn't have a duality of particles and waves, it explains both as excitations in underlying fields. So even the particle in a double slit experiment is just the collapsed wave function, but we experience it as a particle. So precedence in this case is that QFT is the underlying explanation.