Apple needs to restore primacy to the UI. MacOS and iOS used to feel non-blocking with a UI that would always respond regardless of how long a remote or long-running background task required.

Now iOS and MacOS feel sluggish and slothlike, waiting on IO, typically from a remote call. The webdevs have taken over.

Yes they need to remove cruft, and also re-hire the ruthless UI Nazis who would enforce 120hz responsiveness at all cost.