I call B.S.
There are no such Canadians.
The only time I ever found any Canadians to be aggressive, impatient and just plain hostile, was when I asked them to keep a dataroom on an M&A deal open so we could work during a 3-day holiday weekend in Calgary. Holidays and weekends are sacrosanct up there.
However, the owner of my company says Canadians are workaholics compared to Norwegians.