Your new Mac comes with an Accessory Kit
If you've been ordering Macs online since 2004 like I have, the lineage of technical and marketing decisions behind what's going on in Apple's store makes this make sense.
Back in the day, Macs actually came with a handful of necessary accessories.My G4 iBook came with a handful of things, I think. I know I had to install the Airport Express card under the keyboard myself, for some reason.
But the Mac Studio's "Accessory Kit" is literally a power cable. That might be a little generous.