ToString formatted output incorrect on net5.0

This code:
````
            Console.WriteLine("{0}", 30000.ToString("N", new CultureInfo("de-DE")));
````
Produces different output when compiled netcoreapp3.1 and net5.0, note: 3 decimal places in net5.0 and 2 decimal places in netcoreapp3.1
Net5.0
````
30.000,000
````
netcoreapp3.1
````
30.000,00
````