Ct scan says septum is midline but two surgeons told me it’s deviated?

In short, yes. I have performed hundreds of septoplasties and can reassure you that a physical examination is far superior to a CT scan in diagnosing a septal deviation. The CT scan can be limited in terms of angles and soft tissues of the septum. If your surgeon is experienced in septal surgery, they will guide you through this relatively straight-forward and gratifying procedure.

If the surgeon also dies turbinate reduction you will have the best chance for a clear airway. Turbinate reduction is often done with septoplasty to improve results