Hi there,
Even I was waiting for my PR confirmation email my landing was done on ECAS on June 04, Today I emailed coc Etobicoke and got a reply during an hour saying that send your IRCC copy of COPR and after after some time I tried linking my PR card application to CIC account and it shows submitted since June 04.
I believe if your ECAS shows landing done than don’t wait for their confirmation email just try linking your PR card application and send them the IRCC copr copy.
Hope it will help some of you guys!!