Hi Gaurav,
With OutSystems 11 it's not possible to deploy and run your apps on Linux containers. OutSystems did start with the migration to .NET Core (notice that .NET Core 3.1 is also installed with the platform), but as you can read in the article, it's a whole process and they cannot migrate everything at once.
On the positive side of things, with Project Neo that was recently announced during OSDC 2021, you will be able to run your apps on Linux containers and Kubernetes using a microservice architecture. Also .NET Framework 4.x will be migrated to .NET 6.
If you are interested to try out Project Neo, you can sign up for the public EAP here.
Regards,
Nordin