I haven't got the AOR, or link, then not worryhttps://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-covid19/immigration-applicants.html#approved
(for people in Canada and got COPR)
>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.
I did not know this rule so imagined the situation in which people rush to the border