If you did the OSOT it removes the appxproviosioned package and thus you cannot install it using that get-appxpackage command anymore unfortunately.
I'm not quite sure if it is even possible to download the store online and install it again.
That being said, this gives us quite a complicated situation. We deliberately removed the store because if you need to install applications from the windows store you need to enable windows update which is not very nice to have in a non persistent environment.
Do you have a zero touch Golden Image procedure? If so could it be an option to install OneNote within the GI and remove the store application afterwards? This way you can still use OneNote without using the store in the process.