If you have accumulated, within the past 3 years, at least 6 months of full-time, continuous work experience (or an equal amount of part-time work experience) in STEM, they you are good to go.
You need more proofs that will return and won't stay in Canada. That's the biggest concern of the officer.
You'd better not mention your friends in Canada. it's the reason for the officer to think that you will not return to your country.
Looks very simple. If you are in Canada legally you are inland, if you are not, then you are Outland. You will receive a P1 letter asking you about that.
It might and might not. But you need to do it as fast as possible cuz your application might be as well be cancelled as incomplete due to the non-valid PCC.