Switch is usually stocked really well, so the Series S must have sold gangbusters to beat that.
Then again Phil is on record stating the Series S will end up being the better selling console between it and the XSX as the casual gamer >>>>>>> hardcore gamer.
Edit it’s the OLED.
I find the XSX is more in demand but this shortage is making the XSS sell better too since that's the only other Xbox alternative for current gen.