What are you talking about? OP went part time in a semester that was not their last semester. That's all. OP does not qualify for PGWP by the book however there are times when VO makes exceptions
How your post-graduation work permit (PGWP) eligibility is affected
If you’re eligible for the post-graduation work permit program, you’ll still be able to get a post-graduation work permit (PGWP) if
- your in-person classes in Canada have been moved to an online-only format and you had to begin or will continue your classes online because of COVID-19, or
- you had to put your studies on hold or study part-time during the winter, spring or summer 2020 semesters because of COVID-19
The argument was concerning how one should define winter semesters. I am arguing that my university does not have fall semesters in its calender, just winter semesters. OP needs to clarify with IRCC what does the winter semester entail.
I think to clarify with IRCC is better than to drop out of the university and pay for another course.