Hi! I got my PGWP rejected on July 15, 2022, for "not maintaining a full-time academic status in every academic semester." Initially, I had attached a letter of explanation with an explanation of why I took this one sem (Spring 2021) off due to a medical reason. However, the letter wasn't substantial enough according to the IRCC agent who I spoke with on the phone after the refusal. They looked at my case and realized the rejection may have been incidental and agreed to submit a reconsideration request on my behalf. They also asked me to write a substantial letter of explanation with evidence of why I needed to take Spring 2021 (academic semester) off and send it via a Webform. I did so on August 1, 2022, and got my PGWP approved on August 14, 2022.
It was definitely an emotionally challenging time for me where I would wake up with anxiety and would frantically check my email. However, if you have a strong reason for why you took the semesters you took off (supported by strong evidence), you should not need to worry about not getting a positive response for your reconsideration.
Good luck and let me know if you have any questions!