MacOS fails to get the file name from download response in ASP. NET Core

Question

I have an API entry which returns Task<DownloadResponse> (simple class containing only FileName and DownloadUrl). I use the following method to give back the result, which works fine in Windows and Linux:

return new DownloadResponse()
{
    FileName = displayedFileName,
    DownloadUrl = downloadBaseUrl + downloadLink
};

Where FileName is something like dateFrom-dateTo.zip, while DownloadUrl is something like http://localhost/download/file/{hash}. On windows machines I am able to download the file with name FileName, while on MacOS the downloaded files name is the hash at the end of the DownloadUrl (although the file content is correct).

What might be the issue here?