Why does an async method run as a separate thread?

Question

Angular

Good afternoon. I'm trying to understand how async/await work. In the code below: two loops, one draws a number on the first line of the console window, the second - on the second. Since the ShowMessage function saves and restores state, it should not conflict with itself from wherever it is called "synchronously" (which I believe the async/await mechanism should do, i.e. it should interrupt the main thread wherever it is called). was and call this function in this thread, then return control back). But by running the application, you can see that the text is displayed anywhere, as it would be with a thread conflict.
Tell me what am I doing wrong?

public static void Main()
{
    DrawCounter();
    while(true) ShowMessage(DateTime.Now);              // A
}

public static async void DrawCounter()
{
    int counter = 0;
    while(true)                                         // B
    {
        ShowMessage(counter++, 0, 1, ConsoleColor.Red);
        await Task.Delay(1);                            // C
    }
}

public static void ShowMessage(object Message, int Left = 0, int Top = 0, 
    ConsoleColor Color = ConsoleColor.Gray)
{
    int oldLeft = Console.CursorLeft;
    int oldTop = Console.CursorTop;
    var oldColor = Console.ForegroundColor;

    Console.ForegroundColor = Color;
    Console.SetCursorPosition(Left, Top);
    Console.Write(Message);

    Console.CursorLeft = oldLeft;
    Console.CursorTop = oldTop;
    Console.ForegroundColor = oldColor;
}

Answer 1

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Answer 2

1. The thread is not interrupted.
2 DrawCounter();
you should most likely do
DrawCounter().Wait()
or
await DrawCounter();
Otherwise, after the first await inside DrawCounter
, the control gets right here while(true) ShowMessage(DateTime.Now);
3. The context matters, in the gui thread by default, at the end of a new task after await, control is transferred back to the gui thread, this will not happen here.
Then I recommend to google and read more. Too lazy to type a lot.