The body of Test is a normal function. It calls useSWR on fetch1, then on fetch2. getData1 and getData2 are React server actions which are designed to run sequentially. So once getData1 is queued up it will block all other server actions until it finishes, then it will dispatch the next one.

If you want to make calls in parallel you can do it with useSWR but you'll have to make a "normal" fetch style request. You can't use server actions in parallel.