^^ no Costco isn't. I think they are tightened up. I was there yesterday and they were limiting people in in groups. There was also suspiciously the shortest line up to pay I've ever seen. I literally walked right up to the cashier. Costco isn't stupid like other big box stores.
https://www.cbc.ca/amp/1.5819848
I guess this paints a better picture, still doing horrible though. Worse in Alberta