Learn OT Security From Your Starting Point, Discipline, Sector and Available Time.
Most learning paths are IT security curricula with OT examples bolted on. They open with segmentation and never explain why a plant runs the way it does.
Our personas start from what you already carry, whether that is engineering, IT, safety or audit, and build the half you are missing.
Ask the questions you would not ask in front of your peers, at whatever pace the shift allows.