Unfortunately not all apps support launch URLs, but there is a workaround to launch into any app. There are currently a small drawback - this will open the shortcuts app first, but unfortunately there is no way around this at the moment.
Open Shortcuts on Apple Vision Pro
Tap + to create a new shortcut
In the search bar, find “Open App” and tap on it to add it to your shortcut
Tap on the “App” variable to bring up the app selector, and choose the app you wish to open
Tap the menu button in the top left corner, then tap on Rename
Name your shortcut something simple, with no spaces in the name
Open AirLauncher and add a new launch item
In the URL field, type this, replacing YourShortcutName with the exact name you typed in the previous step, including the same capitalization:
shortcuts://run-shortcut?name=YourShortcutName
Choose an icon and add a name to your AirLauncher item and save