Not just Canadians. Commonwealth English generally uses "Zed".

https://en.wikipedia.org/wiki/English_in_the_Commonwealth_of...

I use characters from the phonetic alphabet to prevent misspellings of some easily mis-heard characters. But not zed, rather zebra. I don't use zulu. I watched too many StarTrek episodes with Mister Sulu.

Interesting history, nonetheless

As a non-native English speaker, I find "zee" confusing. It's difficult to distinguish from the word for c (see).

Because they are sane, and do the right thing.

Similar to Germans, which pronounce it ZETT.

Do they say Gen Zed too?