Quantum computers do defeat hidden-variable models, which would have to hide the computation somewhere. But yeah, Bell and EPR ruled those out years ago anyway.
I do agree quantum computers disprove local hidden variable models. Because they can run Bell tests, and local hidden variable models can't violate the Bell inequalities.
Superdeterminism is an interpretation of quantum mechanics where they can:
https://en.wikipedia.org/wiki/Bell%27s_theorem#Superdetermin...