[BUG] - Service Fabric Application project template supports choosing .NET Framework only and not .NET Core

[Veverke]

Describe the bug
This is does not feel like a bug (nor a feature or security request...), rather - a design decision. I am just seeking clarification on what does that mean/why is it like that. Perhaps this issue's action item should be adding this to the documentation, I am sure I am not the first asking this.

The Visual Studio Service Fabric Application project template offers a dropdown to choose the .NET Framework for the SF application. I wonder why .NET Framework is the only option (I have other SDKs installed).
Is this on purpose ? If so, why does the SF Application require .NET Framework ? SF Services do support .NET Core and on.

Area/Component:
VS Project Template wizard

To Reproduce
Steps to reproduce the behavior:

1. Make sure you have SF SDK/tools installed
2. Create a new project in VS
3. Pick "Service Fabric Application"
4. See screen shot below

Expected behavior
Intuitively I would expect the possibility to choose between different SDKS the app can be built with (.NET Framework, .NET Core, .NET 6 and on, etc)

Observed behavior:

Screenshots

Service Fabric Runtime Version:
SDK: 7.0.1949.9590
Microsoft Azure Service Fabric: 10.0.1949.9590

Environment:

• Must be one of these values [OneBox/Dev cluster]
• OS: [Windows 11]
• Version 7.0.1949.9590

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Assignees: /cc @microsoft/service-fabric-triage