Yes.Principal application on ECAS still shows "In process"
But after contacting the Warsaw embassy 2 days ago we received a letter from them on GCKEY asking to submit passport to VAC and stated "The processing of your application for permanent residence in Canada is almost complete. You must complete the following steps within 30 days in order for our office to issue your Confirmation of Permanent Residence and, if applicable, your permanent residence visa."
The letter ended with "As you have now received a Confirmation of Permanent Residence (COPR) or have been notified to submit your travel documents in preparation for the issuance of a COPR, you are strongly encouraged to use free pre-arrival services funded by Immigration, Refugees and Citizenship Canada (IRCC)."
I suppose this means it's official and PR is approved?