Non-nullable property 'Message' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Converting null literal or possible null value to non-nullable type.

The variable 'ex' is declared but never used

Possible null reference argument for parameter 'connectionCtx' in 'Task H3Client.ReadAsync(ConnectionContext connectionCtx, QuicStream clientStream, bool incoming, CancellationToken token)'.

Dereference of a possibly null reference.

The event 'H3Client.OnFrame' is never used

'X509Certificate2.X509Certificate2(string, string?)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'X509Certificate2.X509Certificate2(string, string?)' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.