I am trying to understand your question. You landed as PR and got your PR cards (you and your dependents).
You are free to travel to where you can travel with your passport and is allowed during COVID.
You can travel back to Canada with your PR cards. (plus whatever is needed during COVID travel rule)
Only exception is that you can't travel back to your home country if you got PR via asylum. (which you didn't state in your post how you got your PR)
Otherwise, there is no visa stamping on the Canada side.