Copyleft

Hello everyone,

How is it possible to develop a proprietary application using .NET, for example on "on-prem" Linux devices?

The .NET is licensed under the MIT license. I understand that the application doesn't care how services of .NET are implemented, but I suspect that .NET runtime in a Linux environment uses Linux services under the copyleft licenses (GPL 2.0). So the .NET is GPL 2.0 and the application should be as well and it cannot be proprietary.