cannot back from Activity after request focus and setonkeyEvent using Jetpack Compose

        val requester = FocusRequester()
    Box(
        Modifier
            .onKeyEvent {
                if (it.isCtrlPressed && it.key == Key.A){

                    println("Ctrl + A is pressed")
                    true
                } else {
                    false
                }
            }
            .focusRequester(requester)
            .focusable()
            .size(10.dp)
    )
    LaunchedEffect(Unit) {
        requester.requestFocus()
    }

after launchedEffect and request focus, I need backpressed twice to leave page