Personally based on fact you seem to be a very lucky person, you should be fine.Applied outland but came to Canada in May. Got a request for passport and sent it to Ottawa. Today the package was delivered to Ottawa. I'm on TRV now but the visa record is till November. Should I be worried about the extension of my stay and start preparing docs for that soon or now no need for the extension?
Seriously, the main constraint would be whether you think you will need to travel abroad or some serious and urgent admin reason. Even in emergency travel you would almost certainly be able to get docs to return (or current visa still fine), mostly otherwise in Canada No-one ever asks for docs.
(I guess if you really need to start work would be other case)