For anyone who might be in the same situation,
My TRV was successfully stamped OUTSIDE of Canada, for an INSIDE CANADA application.
Here's my timeline:
Aug 30 - Applied for TRV inside Canada (work permit holder)
Sept 29 - Received PPR inside Canada
Oct 10 - flight to the Philippines
Oct 25 - Passport Sent to Canada embassy for Visa Stamping
Oct 29 - Received Passport with TRV Stamp (indicating TRV issued in Ottawa)
BUT please before you take this route, make sure to email the local Canadian embassy where you plan to have it stamped to confirm if they will process it for you.
Hope this helps and good luck!