Digital Foundry: Scorpio Spec leak - "might suggest console isn't the "true" 4k console as MS claimed"

[LudicrousSpeed]

Link to where MS said the Scorpio will do native 4k at 60fps? All I remember is that their own games will hit native 4k, nothing about framerate, and always very open about third parties being able to do whatever they want. So maybe they did some adverts or interviews I didn't see. Please educate me.