.NET Maui FileStream Issue

I'm converting an UWP app to a .NET Maui, but having an issue with FileStream. Here is my working code in the UWP app:

private async static Task<Stream> GetBinaryStream(string binaryFile)
    {
        var storageFile = await Package.Current.InstalledLocation.GetFileAsync(binaryFile);
        var storageStream = await storageFile.OpenSequentialReadAsync();
        return storageStream.AsStreamForRead();
    }

I've tried multiple implementations, but I can't find an alternative to the line:

 var storageStream = await storageFile.OpenSequentialReadAsync();

How do I replicate the UWP code to work with Maui?