Why Notion as a testimonial
It is unusual for Apple to explicitly name a third-party application during a technical address like the Platforms State of the Union. The fact that Cupertino chose Notion — one of the most widely used productivity products among developers, designers, and knowledge workers — to illustrate the migration from web-based cross-platform UI technologies to native SwiftUI is a precise signal: Apple wants others to follow the same path, and uses Notion as proof of feasibility.
What concretely changes
Applications that build their UI through WebView or cross-platform frameworks such as React Native or Electron often achieve functionally acceptable but visually inconsistent and less responsive results compared to native apps. Migrating to SwiftUI brings better performance, smoother animations, deeper integration with system features — from Liquid Glass to Dynamic Island — and automatic alignment with iOS and macOS updates. MacRumors reported the Notion citation among the highlights of the Platforms State of the Union, noting how Apple is using the SwiftUI 27 updates — including drag-to-reorder, swipe actions in any container, and nested layouts up to twice as fast — to incentivize this transition.