“ :detroppus ton yllacificeps si taht gnihtemos ,hparg ruoy fo noitanitsed trats eht sa tnemgarF gnidraobno eht evah uoy esuaceb edoc ruoy ni srucco eussi siht taht etoNhttps://developer.android.com/guide/navigation/navigation-principles#fixed_start_destination - this is also what causes all of your destinations to remain on the back stack (i.e., Home, List, Home all exist on the back stack, rather than being cleared out) as NavigationUI assumes you are doing the correct thing regarding your start destination. ”
“ ) noitatnemucod noitagivan lanoitidnoc eht rep sAhttps://developer.android.com/guide/navigation/navigation-conditional#first-time_user_experience ), you should be launching your onboarding flow from your actual start destination and not using it as a start destination itself. ”