The Canadian card site (after logging in) has a "lounge finder". Results based on that is crystal clear.
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On the other hand, Canadian Platinum Personal Card includes:
Through the Canadian Platinum Lounge Benefit enjoy complimentary lounge access across most major Canadian cities regardless of airline or fare booked. Or, when traveling with participating airlines in The Airport Club Program enjoy complimentary airline club access across the US and Internationally. What's more, as a Platinum member, you have complimentary access to the American Express Lounge – a private lounge reserved for our most valued Cardmembers. The American Express Lounge is located at Gate B, Domestic departures at Toronto's Pearson Airport
Also, as a Platinum member you can receive Complimentary Membership in Priority Pass
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OAK Escape lounge welcomes AMEX Platinum as part of "American Express Global Lounge Collection"
Canadian Platinum doesn't offer "American Express Global Lounge Collection"