Why is my Polly Retry Policy is throwing "caught" exceptions anyway (HttpClient.Timeout)

Below I am showcasing the policy I am using to handle a PostAsync() request using a HttpClient. However, it seems like even though I passed generic Exception, it still decides to throw it and fail to retry. I would like to ask why this is, and any workarounds.

HttpsClient Setup

_httpClientHandler = new HttpClientHandler(){    UseCookies = true,    CookieContainer = new CookieContainer(),    AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate};_httpClient = new HttpClient(_httpClientHandler) { Timeout = TimeSpan.FromSeconds(10) };

Post Request

private async Task PreparePayloadByDate(DateTime date){    // Define the retry policy with exponential backoff    var retryPolicy = Policy<HttpResponseMessage>.Handle<HttpRequestException>()        .Or<TaskCanceledException>()        .OrResult(r => !r.IsSuccessStatusCode)        .WaitAndRetryForeverAsync(            retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),            onRetry: (exception, retryCount, timeSpan) =>            {                _logger.Log(LogEnums.Error, $"Attempt {retryCount} failed. Retrying in {timeSpan} seconds...");            });    var stringPayload = JsonConvert.SerializeObject(new { key = "days", options = date.ToString("yyyy-MM-dd") });    var httpContent = new StringContent(stringPayload, Encoding.UTF8, "application/json");    var r1 = await retryPolicy.ExecuteAsync(() =>        _httpClient.PostAsync($"{_moduleConfig.Endpoint}/options/selected", httpContent));}

I have also tried using a Policy Timeout rather than the HttpClient's Timeout. This seemed to have the same outcome. See Answer for more context

I would also like to add that this RetryPolicy is inside a try catch, and the exception being thrown is The request was canceled due to the configured HttpClient.Timeout of 15 seconds elapsing. with a StackTrace of at System.Net.Http.HttpClient.HandleFailure(~).

Additional Notes (Added on 2/1/2025)

Even when the timeout of the HttpClient is set to 3 minutes, 10 minutes, etc. It always will timeout. I believe its due to the url I am posting through rate limiting but not really sure. I can not get it to replicate in a browser.