It's hard to agree/disagree on UX without all the application and domain context, but I do feel like toasts are valuable when you are communicating information to the user that is not tied to a fixed UI location/time, but do not want to force interaction (like you do with a modal).
I have seen modals used to communicate status and reaffirming information that does not require action, and between the two, toasts are a better fit. That said, you still need to be smart where the bar is in terms of what is worth communicating. None of us want applications to blather on about stuff we don't care about.
I have seen modals used to communicate status and reaffirming information that does not require action, and between the two, toasts are a better fit. That said, you still need to be smart where the bar is in terms of what is worth communicating. None of us want applications to blather on about stuff we don't care about.