As someone who lives close to the border and had to deal with Canadians most of my life as an American, the biggest difference is a huge denigration of Christianity for some bizarre reason. Anglican-based Churches have this problem where most of the Priests are either activists, politician mouthpieces, or someone who believes in God and is depressingly aware that their institution is being worn like a skin suit.
Most priests in Canada just seem to either be at or below the level of Lutheran Sparkle Churches. People who will bend to gay race bullshit and happily take kids in their charge to Mosques to submit to Muslims under the guise of tolerance. You guys will ultimately go from Christian majority to Muslim and Hindu pagan in a few years. You also have those Buddhist cults that seduce lonely old people to take their land.
Worse is that a lot of Canadians are proud of it like they are stuck in late 2000’s Internet Atheism. Ready to own the Bible Belt rubes, but they view basically all Americans like this. It’s such an immature and gay way of looking at shit. You can see a change in some shit though. In that Fred Phelps video from like 16 years ago you can see comments shifting from “haha look at this dumb American” to “well shit”.