This is crazy to me. I work in a hospital and everyone in every OR is required to wear masks, scrubs/bunny suits (sterile white disposable suits), shoe covers (or have shoes specifically only for use in the ORs) and sometimes gloves if there are circumstances that require it. We've also had requirements for everyone who works with patients throughout the hospital to wear a mask since probably October/November.

Edit: the OR rules have been the same since I started working there almost a decade ago, not just since COVID