Launch a Windows store installed app from the command line

>start shell:AppsFolder\Microsoft.RemoteDesktop_8wekyb3d8bbwe!App

Here "Microsoft.RemoteDesktop_8wekyb3d8bbwe" is the PFN (Product Family Name) of the app to launch. Fortunately, these names are easy to find as there are folders with these names for each of the installed apps at "C:\Users\[username]\AppData\Local\Packages"