EASIEST WAY TO GET WINDOWS STORE ON 11 LTSC, NO POWERSHELL REQUIRED.
>search for Xbox windows app and download
>once installed, go to 'show queue' in the bottom left corner
>click 'install options' in the upper right
>click 'App' in side menu
>install 'app installer' and 'store' and optionally any other of the depencies you need

For some reason 'wsreset -i' in power shell doesn't work for me, so this method should work for everyone.