The solutions seem to rely on a user that doesn't navigate before the action is completed. Does he propose locking the UI in the meantime, or to optimistically show the user a success result?
> optimistically show the user a success result?
I don't particularly like React, but this a core feature of such JS frontend frameworks, optimistically "succeed" while async network and back-end work happens to give the illusion of speed: https://react.dev/blog/2024/04/25/react-19#new-hook-optimist...
I don’t have any strong feelings one way or another as long as there is proper inline feedback.
Toasts are a global UI feedback mechanism for non-blocking/fallible/undo-able actions. That does make them out-of-place by default, but at least consistently so.
A solution I'd accept is local-view-first with toasts-as-fallback when the view is dismissed. That said, loading indicators _might_ make users hesitant to dismiss a view.