I hadn't heard that this was likely to happen. Any Canadians here able to weigh on whether this was expected or is a normal procedure for your elected officials?
Generally, governments in Canada are voted out in roughly 9-year intervals. Trudeau took office in 2015, so nothing unusual there. Moreover, Trudeau is exiting with approval ratings just a percent below his predecessor, Stephen Harper (22% vs. 23%, respectively). So, in a wider sense, this is not so unusual. But we're facing a trade war with the States and less-than-joking threats of annexation, so it's a bad moment…
He could have rested on his laurels knowing history would likely forget his shortcomings & scandals, and be remembered as the prime minister who got us legal weed, navigated the covid pandemic, brought clean drinking water to FN reserves and advanced social programs (childcare, dental care).
Instead he's likely going to be known as the prime minister who had to be forcibly walked to the door by Canadians and his party, while leaving the country in a precarious position during tumultuous times.