React Query tutorial 1: Query Devtools and hooks 

invalidate: mark all the queries with that query key as stale and only fetches if the used queries on screen right now refetch: mark all queries with that query key as stale and fetches all the queries even if they are not used example: if we are in a page A that have a query to fetch animals with queryKey "Animals" , then navigated to page B which are not using animals query if we triggered queryClient.invalidateQuery, that will mark "Animals" as stale and will only fetch animals if you navigated to page A if we triggered queryClient.refetchQueries that will mark "Animals" as stale and fetches them while we are in Page B

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