Propranolol before surgery?

I have a prescription for propranolol that I’ve only taken I think once ever and that was a long time ago. The hospital called to prep me for my surgery tomorrow and mentioned that they’d like me to definitely take one before coming as it offers “some protective benefits”, but when I google it, it says it should not be taken before surgery.

Does anyone have experience with propranolol at all or taking it before surgery?