Im learning redux middleware, saga and thunknspecifically and I'm kinda confuse on why theres two exisiting middleware if they doing the same and benefiting your app. And I read some in the blog/post that saga much good compared to thunk.
This is an "apples and oranges" question.
Redux-Saga is an async side effects addon for the Redux core state management library. You can use Redux by itself, or Redux-Saga with Redux, but this is not an "A or B" choice - they don't do the same thing at all.