I was looking separately and I think I found where the claim comes from:
> The federal government's latest immigration levels plan, released last fall, would see Canada welcome 500,000 immigrants annually by 2025. In contrast, the immigration target for 2015 was under 300,000.
Then:
> In 2022, Canada's population grew by more than one million people, a number that included 607,782 non-permanent residents and 437,180 immigrants. https://www.cbc.ca/news/politics/feds-immigration-strategy-s...