U.S. student considering universities in Canada

As someone from the U.S. considering universities in Canada, I'm curious about how the application process differs from what we have here. I've heard that Canadian universities have unique requirements, especially for international students. Can anyone share their experiences or insights on what factors are most important in the admissions process?
Additionally, I noticed that discussions on The Student Room often touch on university life and student experiences, which could provide valuable context for understanding what to expect. It would be great to hear from those who have gone through the application process or are currently studying in Canada, as their perspectives could really help those of us considering this path. Thank you!