Where To Use Priority Pass At Pearson (T3 Domestic)

I see that Plaza Premium Lounges have parted ways with Priority Pass as of last July. I'm wondering if my PP passes are good at any other lounges at Pearson T3?
We are flying with Westjet from Los Angeles through Toronto to Ottawa. We have a three hour lay over in Toronto.
Also, I have a WS credit card that gives me four lounge passes. There is a Plaza Lounge in T3 (domestic departures) and wondering if that's the route I should go? Thanks for your help!