I am in the same situation
I applied for study permit extension on Oct 15, 2019
My study permit expired on November 30, 2019
I graduated on Jan 13, 2020
It has been 125 days for waiting the study permit and I made the request form for my case to CIC and still waiting.
I read somewhere in this group is that we can apply the PGWP with implied status, but I still want to find the official information from CIC.
I intend to apply for my PGWP with an explanation letter.
Can I have advice from you guys?
Many thanks!