@Ter****
you are misunderstanding a couple things.
You CAN go cancel your work permit and your extension early. You take documents from your employer stating you stop work on xxx date and go to the immigration office about a week before your termination date. They'll cancel your extension and stamp you in on a new stamp until the date on your termination paperwork.
Then on or before that date you apply for a covid extension. You don't get to wait AT ALL.
When I said you have until May 29th to apply for a covid extension I didn't mean you could stay with NO stamp until then :(
I meant that the PROGRAM allowing 60 day covid extensions expires on that day only.
You need to get a covid extension as soon as you cancel your current extension OR you're gonna go on overstay.