That's an optional form for outside of Canada applications I believe.I applied on August 30, 2022 and application was received on August 31, 2022.
I noticed that they are requiring IMM5257 - Schedule 1 on the application document checklist page.
Looks like they are interested in my travel history.
However I did not receive any message/e-mail actually requesting it.
Have you experienced something like this? Would it delay my application process for months?