In C#, what is the use of async/await method calls?

In my project's code base, I see a lot of methods that boil down to the following code:

public async Task<bool> MyAsyncFunction(string filePath) 
{
   byte[] fileBytes = await File.ReadAllBytesAsync(filePath);
   bool succeeded = await UploadFileSomewhereAsync(fileBytes);

   return succeeded;
}

I understand that async/await is useful for non-blocking UI tasks in front-end code. I also understand that async/await can be used to run certain tasks in parallel, as in the code below:

public async Task<bool> MyAsyncFunction(string filePath) 
{
   Task<byte[]> fileBytesTask = File.ReadAllBytesAsync(filePath);

   // do some other work that does not need the file byte array

   byte[] fileBytes = await fileBytesTask;
   bool succeeded = await UploadFileSomewhereAsync(fileBytes);

   return succeeded;
}

However, how is the async/await pattern of any use in the first example? Is there any benefit of writing code like this over simply calling the synchronous versions of these methods? Am I missing something?