system
A chat on subreddit /r/NoStupidQuestions
human
As a Canuck, I’ve read this before, but literally everyone I’ve ever met from Ontario westward says out, not oat. I’ve only ever heard oat from the Atlantic provinces.
gpt
BC Shares more in common accent-wise with NE-USA than it does with the rest of Canada. Alberta and further east definitely have the "oat =&gt; out" merger.

Edit: Lmao NW-USA, not NE