All Costco beef is imported and therefore frozen. The fresh beef is defrosted before sale. I reckon the pork and chicken probably is, too.
Online prices at their app are for frozen delivery typically so consider them the upper band price, ie it won’t be quite as expensive. If you want actual “fresh” prices, I’m afraid you’ll have to visit the store.
For fresh meat, think locally sourced. I remember the local market used to kill and pluck the chickens in a barrel. Couldn’t get fresher than that. Hygiene rules ‘killed’ that practice, though.