app intents not working with placeholders and without app name

I tried this:

struct CarShortcutsProvider: AppShortcutsProvider {
    @AppShortcutsBuilder
    static var appShortcuts: [AppShortcut] {
        AppShortcut(
            intent: LockCarIntent(),
            phrases: ["Lock my car with \(.applicationName)", "Lock my \(\.$car) with \(.applicationName)"],
            shortTitle: LocalizedStringResource("Lock Car"),
            systemImageName: "lock.fill"
        )
        
        AppShortcut(
            intent: UnlockCarIntent(),
            phrases: ["Unlock my car with \(.applicationName)", "Unlock my \(\.$car) with \(.applicationName)"],
            shortTitle: LocalizedStringResource("Unlock Car"),
            systemImageName: "lock.open.fill"
        )
    }
}

but Siri only understands "unlock my car <appname>", not with the placeholder. Siri asks me then for the car, and it understands it, but not in one sentence. Is there something wrong with my code?

Also I tried it without applicationName first, and then it didn't work at all with Siri. Is this a general limitation of app intents? I thought the goal was to reduce friction. If the user has to mention the app name all the time, it adds friction.