Dont know if this is 100% up-to-date by the day, but the airport website has this as a resource: https://www.torontopearson.com/en/re...at-the-airport. If you pick what you’re looking for (eat, shop, etc.), and then select your airline and destination, it will limit it to what’s at your part of the airport.

In response to my upthread post, appears that PP transborder lounge at T1 is open again now. Starbucks and some the restaurants, as well.