This is Windows dev: while command line is available, everything has been thought for the GUI. Use Visual Studio, it will provide a much better experience. There's a button for what you want to do on VS (green arrow, at the top, the hint text is "run" I think).

For a packaged app, this may be relevant:

https://docs.microsoft.com/en-us/windows/msix/desktop/deskto...

There is a way to launch packaged apps from the command line once you have registered them:

https://docs.microsoft.com/en-us/windows/uwp/xbox-apps/autom...

Everything with packaged apps is harder, so I try to avoid it.