static class TaskExtensions
{
    public static ConfiguredTaskAwaitable<TResult> NoSync<TResult>(this Task<TResult> task)
    {
        return task.ConfigureAwait(false);
    }
}

class Request
{
    public string? Name { get; }
    public Task<string?> GetName() => Task.FromResult(Name);
}

class Handler
{
    public async Task Handle(Request request)
    {
        string a = request.Name;    // <-- CS8600
        string b = await request.GetName().ConfigureAwait(false);    // <-- CS8600
        string c = await request.GetName().NoSync();    // <-- No warning here
    }
}