The ability to be able to perform under pressure is over-rated. It's fashionable and it buys into the global narrative of stress and burnout.
The ability to be able to perform without pressure, on the other hand, is under rated. This is because what you do when you have low pressure conditions can prevent the experience of "pressure" in the first place.
We can be fooled into a focus on mastering high pressure performance when prevention through preparation and practice can completely alleviate it.