How easy is it for you to discern American and Canadian accents?

I would imagine that for English speakers outside of North America, Like in the UK and Australia our accents can sound indistinguishable. For me I find it fairly easy to identify the differences between them mainly because of the weird way Canadians pronounce words like progress as proh-gress and the way they stretch the "ou" sound in words like "house" and "about". I imagine that one might be because of French influence on Canadian English. It's kind of like how aussies and kiwis can tell each other apart but nobody else in the anglosphere can.