To be complete, Elizabeth is still on a lot of Canadian money, and she was the Queen of the UK with dominion over Canada until 1984, when she became Queen of Canada, and the UK crown lost dominion over Canada.

So Elizabeth was a British monarch on Canadian money, and Canadian monarch on Canadian money, uniquely.

Of course she is no longer put on newly made money.

I’ve been to Canada, and the people strangely have a wildly different accent than their own monarchs for some reason.

The vast majority of people in the UK also have a wildly different accent from their monarchs.