Not sure why you need the custom navigator, you can use an activity-level DisposableEffect and you'd be good to go https://github.com/Zhuinden/jetpack-navigation-ftue-compose-sample/blob/1225e305510bef248a587b918563fe86b83eb3f2/app/src/main/java/com/zhuinden/jetpacknavigationftuecomposeexample/application/MainActivity.kt#L71-L78