It’s kinda curious that xenon can be used both for performance enhancement _and_ as a general anaesthetic.

Anesthetics are very weird. One of the leading theories is that they basically get wedged in lipid bilayers and interfere with neural signaling: https://en.wikipedia.org/wiki/Theories_of_general_anaestheti...

And as a dessert topping!

No, It's a FLOOR WAX!