Nope, if I understand correctly travel restrictions apply we are not exempt from these, and we cannot travel just to become a permenant resident according to the site:
https://www.canada.ca/en/immigratio...s-covid19/immigration-applicants.html#expired
If you got your COPR, but haven’t landed
If we sent you a COPR, but you haven’t been able to go to one of our offices in Canada to validate it, we’ll contact you to tell you what to do. Use the
web form if you need to update your contact information.
You should
not travel to a port of entry to validate your COPR. This is not considered essential travel and you won’t be able to validate it this way.