Except that's not 100% accurate. That is the behavior in iOS. However, you can exclude 3rd party extension activities when you build for macOS (built for iPad) or Catalyst.

Have you had any luck here? I'm running into similarly issues. AppShortcut(intent: AskClipDish(), phrases: [ "Ask \(.applicationName) a question", "Ask \(.applicationName) for help", "Ask \(.applicationName)", "Tell \(.applicationName) \(\.$questionForClipDish)" ]) When I trigger with Ask ClipDish, I'm prompted to choose between Messages and ClipDish With I trigger with Tell ClipDish question, Safari opens.

I believe you need to include your application name in the phrase. That was what seemed to fix it for me. Try this: AppShortcut(intent: ShowTodayTasks(), phrases:["Show today tasks in \(.applicationName)", "Show my tasks today in \(.applicationName)"])

Does you physical device have Shortcuts app installed? I noticed that if you remove the Shortcuts app that it seems like the App Intent doesn't get registered.