.NET 10 GZip concatenated read + better performance

Program.cs

using System;
using System.IO;
using System.IO.Compression;
using System.Text;
using System.Threading.Tasks;

async Task ReadConcatenatedGzipAsync(string path)
{
    await using var fileStream = File.OpenRead(path);
    await using var gzip = new GZipStream(fileStream, CompressionMode.Decompress);
    using var reader = new StreamReader(gzip, Encoding.UTF8);

    string content = await reader.ReadToEndAsync();
    Console.WriteLine(content);
}

// Works even if the file contains multiple gzip members concatenated + better performance
await ReadConcatenatedGzipAsync("data.gz");