In my application i inherited some code and i see this construct;

string? content = null;
try
{
    content = await result.Content.ReadAsStringAsync(cancellationToken);
}
catch(Exception e) when (e is not OperationCanceledException)
{
    // Swallow
}

Is this superfluous? Can ReadAsStringAsync throw anything other than OperationCancelledException or can the catch be removed assuming the OperationCancelledException is caught up the chain?

The msdn docs do not show any exceptions other than OperationCancelledException.
https://learn.microsoft.com/en-us/dotnet/api/system.net.http.httpcontent.readasstringasync?view=net-8.0