https://www.canada.ca/en/immigration-refugees-citizenship/services/application/account.html
When we apply for the work permit extension for both refugee claimants and accepted refugees:
1. We go to the GCKey Portal
2. Go to the bottom page > Start an application > and click on "Apply to come to Canada"
3. In my case, no personal reference code, click on "visitor, study or work permit"
4. For questions: What would you like to do in Canada > Select Work > How long would you like to stay in Canada > Select Temporary less than 6 months, then answer all other questions
5. Not a US PR (most of us are not)
6. Find out if you are eligible to apply > Click on "Refugee Claimant" then Next button
7. Then select the situation that applies to you -- e.g. refugee claim in progress or accepted refugee or other situations
8. Then answer all other questions page by page
9. When asked if you have medical exam performed by IRCC authorized doctors in the past 12 months, click No, if you haven't had it (in my case I only did the medical exam paid by IRCC when making the refugee claim and is more than 12 months ago)
10. Then answer all other questions, and it will come to the page listing all your answers and then Next
11. You will see what documents you need to submit for a work permit extension: there's no medical exam required and no fee to be paid.
